A patient is on sick leave for 4 months continuously from the date of injury. The treatment is going to last for another 1-2 months. Who is authorised to extend the duration of medical certificate for this patient?

Answer options

1. Medico-social expert commission
2. District doctor by agreement with a department chief
3. Medical advisory commission after inpatient treatment
4. Medical superintendent
5. Medical advisory commission after medico-social expert commission examination