def METHOD_NAME(self):
    """
    Display welcome page
    """
    # Close all other open windows first
    if self.open_patient_window.isVisible():
        self.open_patient_window.close()
    if self.batch_window.isVisible():
        self.batch_window.close()
    # only initialize welcome_window once
    if not isinstance(self.welcome_window, WelcomeWindow):
        self.welcome_window = WelcomeWindow()
        self.welcome_window.go_next_window.connect(
            self.show_open_patient)
        self.welcome_window.go_batch_window.connect(
            self.show_batch_window)
    self.welcome_window.show()