public async Task <bool> deleteAsync(long id)
        {
            try {
                Paciente pac = await pacRepo.GetPacienteAsync(id);

                pac.medicos = new HashSet <MedicoPaciente>();
                await this.updateAsync(pac);

                foreach (Cita c in pac.citas)
                {
                    await diagRepo.DeleteDiagnosticoAsync(c.diagnostico.id);

                    await citaRepo.DeleteCitaAsync(c.id);
                }
                pac.citas = new HashSet <Cita>();

                await pacRepo.DeletePacienteAsync(id);

                return(true);
            } catch (Exception) {
                return(false);
            }
        }