protected internal static void SeePatientHistory(Clinic clinic) { Console.Write("\n Enter your ID: "); int patientID = Convert.ToInt32(Console.ReadLine()); var history = clinic.GetPatientHistory(patientID); if (history != null) { foreach (var appointment in history) { Console.WriteLine($" Patient: {appointment.patient.Name} \n Doctor {appointment.doctor.Name} " + $"\n Appointment Date: {appointment.appointmentDate.ToLongTimeString()} " + $"\n Diagnose: {appointment.Diagnose}"); } } return; }