public async Task Delete(TreatmentKind treatmentKind)
 {
     _context.TreatmentKinds.Remove(treatmentKind);
     await _context.SaveChangesAsync();
 }
 public async Task Update(TreatmentKind treatmentKind)
 {
     _context.TreatmentKinds.Update(treatmentKind);
     await _context.SaveChangesAsync();
 }
 public async Task Add(TreatmentKind treatmentKind)
 {
     _context.TreatmentKinds.Add(treatmentKind);
     await _context.SaveChangesAsync();
 }