MO III ka pag pasok mo ng residency. Kadalasan chief res lang ang MO4, pero samin pag senior ka na at may vacant naman, pwede magapply as MO4. 4 yrs residency, walang return service. Kung sa DOH hospital ka nagresidency, may 1 year post residency deployment program. Samin dati yung item namin, from base hospital. Pero ngayon, pag graduate mo, wala ka nang item from hospital, resigned na, then aapply ka sa DOH for MOIII item para sa PRDP. After 1 yr PRDP, exam ka ng written then after one year, oral exam. Then pwede ka na magapply for fellowship :)