clinic/netforce_clinic/layouts/clinic_change_visit.xml

<form model="clinic.change.visit">
    <field name="visit_date" onchange="onchange_date"/>
    <field name="cycle_id" onchange="onchange_cycle" required="1"/>
    <field name="department_id" required="1" onchange="onchange_department"/>
    <field name="branch_id" invisible="1"/>
    <field name="patient_id" onchange="onchange_patient"/>
    <field name="doctor_id"/>
    <field name="time_start" onchange="onchange_datefrom" invisible="1"/>
    <field name="time_stop" invisible="1"/>
    <field name="visit_id" invisible="1"/>
    <foot>
        <button string="Change" type="primary" method="do_change"/>
    </foot>
</form>