private void detach_Referrals(Referral entity)
 {
     this.SendPropertyChanging("Referrals");
     entity.Client = null;
 }
 private void attach_Referrals(Referral entity)
 {
     this.SendPropertyChanging("Referrals");
     entity.RbSpeciality = this;
 }
 private void detach_Referrals(Referral entity)
 {
     this.SendPropertyChanging("Referrals");
     entity.Organisation = null;
 }