public ActionResult Index()
        {
            PacienteVM viewModel = new PacienteVM();

            viewModel.HandleRequest();

            return View(viewModel);
        }
        public ActionResult Index(PacienteVM viewModel)
        {
            viewModel.IsValid = ModelState.IsValid;
            viewModel.HandleRequest();

            if (viewModel.IsValid)
            {
                ModelState.Clear();
            }
            else
            {
                foreach(KeyValuePair<string, string> item in viewModel.ValidationErros)
                {
                    ModelState.AddModelError(item.Key, item.Value);
                }
            }

            return View(viewModel);
        }