public AppointmentController(IVacBL vacBL)
 {
     _vacBL = vacBL;
 }
 public PharmacyController(IVacBL vacBL)
 {
     _vacBL = vacBL;
 }
 public VaccineController(IVacBL vacBL)
 {
     _vacBL = vacBL;
 }
 public PatientController(IVacBL vacBL)
 {
     _vacBL = vacBL;
 }