} // end of HandleAvailabilitiesSpecialServiceRequest

        #endregion

        #region HandleRequireDocs

        /// <summary>
        /// Handles a request to send doctors for consultation or assisting between departments
        /// </summary>
        /// <param name="del">The original request for doctors to consult or assist</param>
        /// <param name="controlUnit">Control unit that filed request for assistance or consultation</param>
        /// <param name="time">Time request was filed</param>
        /// <param name="simEngine">SimEngine responsible for simulation execution</param>
        /// <returns>True if request has been handled</returns>
        static public bool HandleRequireDocs(IDelegate del, ControlUnit controlUnit, DateTime time, ISimulationEngine simEngine)
        {
            foreach (SkillSet reqSkill in ((DelegateRequestDocsForAssisting)del).RequiredSkillSets)
            {
                List <EntityDoctor> possibleDoc = ((ControlUnitHealthCare)controlUnit).FindDoctorWithSkillSet(reqSkill);

                if (possibleDoc.Count == 0)
                {
                    break;
                }

                EntityDoctor chosenDoc = null;

                foreach (EntityDoctor doc in possibleDoc)
                {
                    if (doc.ParentControlUnit == controlUnit)
                    {
                        ActivityMove possibleMove = doc.GetPossibleMovingActivity();

                        if (possibleMove != null &&
                            (possibleMove.Destination == del.OriginControlUnit ||
                             possibleMove.Destination == doc.BaseControlUnit))
                        {
                            chosenDoc = doc;
                            break;
                        } // end if
                    }     // end if

                    if (((ControlUnitHealthCare)doc.ParentControlUnit).ControlUnitType == Enums.ControlUnitType.Inpatient)
                    {
                        chosenDoc = doc;
                        break;
                    } // end if
                }     // end foreach

                if (chosenDoc == null)
                {
                    chosenDoc = possibleDoc.First();
                }

                if (chosenDoc.ParentControlUnit == controlUnit)
                {
                    ActivityMove possibleMove = chosenDoc.GetPossibleMovingActivity();

                    if (possibleMove != null && possibleMove.Destination == chosenDoc.BaseControlUnit)
                    {
                        simEngine.RemoveScheduledEvent(possibleMove.EndEvent);
                        chosenDoc.StopCurrentActivities(time, simEngine);
                        ActivityMove move = new ActivityMove(controlUnit, chosenDoc, controlUnit, del.OriginControlUnit, del, TimeSpan.FromMinutes(1));
                        move.StartEvent.Trigger(time, simEngine);
                    } // end if
                }
                else
                {
                    controlUnit.SendDelegateTo(chosenDoc.ParentControlUnit, new DelegateSentDocForAssistedTreatment((ControlUnitHealthCare)del.OriginControlUnit, reqSkill));
                } // end if
            }     // end foreach

            return(true);
        } // end of HandleRequireDocs
        } // end of PerformAssessment

        #endregion

        #region PerformDisptatching

        protected bool PerformDisptatching(DateTime time, ISimulationEngine simEngine)
        {
            #region StayInBed

            bool triggeredStayInBed = false;


            foreach (RequestInpatientStayInBed request in PossibleEmergencyStayInBed)
            {
                EntityPatient     patient       = request.Patient;
                List <EntityWard> possibleWards = WardsPerType[patient.InpatientPath.CurrentTreatmentBlock.WardType];

                EntityBed bed = null;

                foreach (EntityWard ward in possibleWards)
                {
                    bed = ward.GetBed(patient.InpatientPath.CurrentTreatmentBlock.BedType);
                    if (bed != null)
                    {
                        break;
                    }
                } // end foreach

                if (bed != null)
                {
                    patient.InpatientPath.CurrentTreatmentBlock.InititateTreatmentBlock(bed.ParentWard, bed);
                    patient.StopCurrentActivities(time, simEngine);
                    ActivityInpatientStayInBed stayInBed = new ActivityInpatientStayInBed(this, patient, bed.ParentWard, bed, false);
                    stayInBed.StartEvent.Trigger(time, simEngine);
                    triggeredStayInBed = true;

                    RemoveRequest(request);
                } // end if
            }     // end foreach

            foreach (RequestInpatientChangeWard request in PossibleChangeWard)
            {
                EntityPatient     patient       = request.Patient;
                List <EntityWard> possibleWards = WardsPerType[patient.InpatientPath.CurrentTreatmentBlock.WardType];

                EntityBed bed = null;

                foreach (EntityWard ward in possibleWards)
                {
                    bed = ward.GetBed(patient.InpatientPath.CurrentTreatmentBlock.BedType);
                    if (bed != null)
                    {
                        break;
                    }
                } // end foreach

                if (bed != null)
                {
                    patient.InpatientPath.CurrentTreatmentBlock.InititateTreatmentBlock(bed.ParentWard, bed);
                    request.OldBed.RemovePatient();
                    patient.StopCurrentActivities(time, simEngine);
                    ActivityInpatientStayInBed stayInBed = new ActivityInpatientStayInBed(this, patient, bed.ParentWard, bed, false);
                    stayInBed.StartEvent.Trigger(time, simEngine);

                    RemoveRequest(request);
                } // end if
            }     // end foreach

            foreach (RequestInpatientStayInBed request in PossibleScheduledStayInBed)
            {
                EntityPatient     patient       = request.Patient;
                List <EntityWard> possibleWards = WardsPerType[patient.InpatientPath.CurrentTreatmentBlock.WardType];

                EntityBed bed = null;

                foreach (EntityWard ward in possibleWards)
                {
                    bed = ward.GetBed(patient.InpatientPath.CurrentTreatmentBlock.BedType);
                    if (bed != null)
                    {
                        break;
                    }
                } // end foreach

                if (bed != null)
                {
                    patient.InpatientPath.CurrentTreatmentBlock.InititateTreatmentBlock(bed.ParentWard, bed);
                    patient.StopCurrentActivities(time, simEngine);
                    ActivityInpatientStayInBed stayInBed = new ActivityInpatientStayInBed(this, patient, bed.ParentWard, bed, false);
                    stayInBed.StartEvent.Trigger(time, simEngine);

                    RemoveRequest(request);
                } // end if
            }     // end foreach

            #endregion

            #region InpatientActivities

            List <RequestInpatientActivity>       originalRequests = PossibleRAEL.Where(p => p is RequestInpatientActivity).Cast <RequestInpatientActivity>().ToList();
            List <RequestInpatientResumeActivity> resumeRequests   = PossibleRAEL.Where(p => p is RequestInpatientResumeActivity).Cast <RequestInpatientResumeActivity>().ToList();

            List <RequestInpatientActivity>       requestsEmergencyTreatment = originalRequests.Where(p => p.InpatientTreatment.IsEmergencyTreatment && ((RequestInpatientActivity)p).EarliestTime <= time).Cast <RequestInpatientActivity>().ToList();
            List <RequestInpatientActivity>       requestsTreatment          = originalRequests.Where(p => !p.InpatientTreatment.IsEmergencyTreatment && ((RequestInpatientActivity)p).EarliestTime <= time).Cast <RequestInpatientActivity>().ToList();
            List <RequestInpatientResumeActivity> requestsResumeTreatment    = resumeRequests.Where(p => !p.InpatientTreatment.IsEmergencyTreatment && ((RequestInpatientResumeActivity)p).EarliestTime <= time).Cast <RequestInpatientResumeActivity>().ToList();


            #region EmergencyTreatments

            if (requestsEmergencyTreatment.Count > 0)
            {
                EntityPatient patient = requestsEmergencyTreatment.First().Patient;

                EntityDoctor doctor = ChooseDoctor(requestsEmergencyTreatment.First().Patient, requestsEmergencyTreatment.First());

                if (doctor != null)
                {
                    ActivityInpatientEmergencyTreatment newInpatientEmergencyTreatment = new ActivityInpatientEmergencyTreatment(this,
                                                                                                                                 patient,
                                                                                                                                 doctor,
                                                                                                                                 patient.Ward,
                                                                                                                                 patient.Bed);
                    patient.StopCurrentActivities(time, simEngine);
                    doctor.StopCurrentActivities(time, simEngine);

                    newInpatientEmergencyTreatment.StartEvent.Trigger(time, simEngine);

                    PossibleRAEL.Remove(requestsEmergencyTreatment[0]);
                    RemoveRequest(requestsEmergencyTreatment[0]);
                    requestsEmergencyTreatment.RemoveAt(0);

                    return(true);
                } // end if
            }     // end if

            #endregion

            #region Treatments

            if (requestsTreatment.Count > 0)
            {
                EntityPatient patient = requestsTreatment.First().Patient;

                EntityDoctor doctor = ChooseDoctor(requestsTreatment.First().Patient, requestsTreatment.First());

                if (doctor != null)
                {
                    ActivityInpatientTreatment newInpatientTreatment = new ActivityInpatientTreatment(
                        this,
                        patient,
                        doctor,
                        patient.Ward,
                        patient.Bed,
                        requestsTreatment.First().InpatientTreatment);
                    patient.StopCurrentActivities(time, simEngine);
                    doctor.StopCurrentActivities(time, simEngine);

                    newInpatientTreatment.StartEvent.Trigger(time, simEngine);

                    PossibleRAEL.Remove(requestsTreatment[0]);
                    RemoveRequest(requestsTreatment[0]);
                    requestsTreatment.RemoveAt(0);

                    return(true);
                } // end if
            }     // end if

            #endregion

            #region ResumeTreatments

            if (requestsResumeTreatment.Count > 0)
            {
                EntityPatient patient = requestsResumeTreatment.First().Patient;

                EntityDoctor doctor = ChooseDoctor(requestsResumeTreatment.First().Patient, requestsResumeTreatment.First());

                if (doctor != null)
                {
                    ActivityInpatientTreatment newInpatientTreatment = new ActivityInpatientTreatment(this,
                                                                                                      patient,
                                                                                                      doctor,
                                                                                                      patient.Ward,
                                                                                                      patient.Bed,
                                                                                                      requestsResumeTreatment.First().DegreeOfCompletion,
                                                                                                      requestsResumeTreatment.First().Duration,
                                                                                                      requestsResumeTreatment.First().InpatientTreatment);
                    patient.StopCurrentActivities(time, simEngine);
                    doctor.StopCurrentActivities(time, simEngine);

                    newInpatientTreatment.StartEvent.Trigger(time, simEngine);

                    PossibleRAEL.Remove(requestsResumeTreatment[0]);
                    RemoveRequest(requestsResumeTreatment[0]);
                    requestsResumeTreatment.RemoveAt(0);

                    return(true);
                } // end if
            }     // end if

            #endregion

            #endregion

            #region OrganizationalWork

            bool triggeredOrganizationalWork = false;

            List <RequestInpatientDoctorOrganziationalWork> allOrgReqs = PossibleRAEL.Where(p => p is RequestInpatientDoctorOrganziationalWork).Cast <RequestInpatientDoctorOrganziationalWork>().ToList();

            foreach (RequestInpatientDoctorOrganziationalWork reqOrg in allOrgReqs)
            {
                if (reqOrg.Doctor.IsWaiting())
                {
                    reqOrg.Doctor.StopCurrentActivities(time, simEngine);

                    ActivityInpatientDoctorOrganizationalWork orgWork = new ActivityInpatientDoctorOrganizationalWork(this, reqOrg.Doctor, WaitingRoomStaff, reqOrg.DegreeOfCompletion, reqOrg.Duration);

                    orgWork.StartEvent.Trigger(time, simEngine);

                    triggeredOrganizationalWork = true;

                    PossibleRAEL.Remove(reqOrg);
                    RemoveRequest(reqOrg);
                } // end if
            }     // end foreach

            #endregion

            return(triggeredStayInBed || triggeredOrganizationalWork);
        } // end of PerformDisptatching