//private readonly ILogger _logger;

        public PatientsController(IVisitsRepo visits, IPatientsRepo patients, IPatientsMapper pMapper, IVisitsMapper vMapper)
        {
            _visits   = visits;
            _patients = patients;
            _pMapper  = pMapper;
            _vMapper  = vMapper;
        }
 public VisitsController(IVisitsRepo visits, IPatientsRepo patients, IVisitsMapper vmapper)
 {
     _visits   = visits;
     _patients = patients;
     _vmapper  = vmapper;
 }