A worker was temporarily off work because of illness for l6 days, was under out-patient treatment. The doctor in charge issued a sick-list first for 5 days, then prolonged it for 10 days. Who can further prolong the sick-list of this patient?

Answer options

1. The head of department
2. The doctor in charge of the case together with the head of department
3. Deputy head physician on the working ability expertise
4. The doctor in charge of the case with the permission of the head of department
5. Working ability expertise committee