▁through ▁teaching . ▁Most ▁recently ▁in ▁ 2 0 0 9 ▁he ▁was ▁awarded ▁the ▁Bron ze ▁Medal ▁for ▁his ▁collabor ative ▁projects ▁with ▁international ▁N GO s , ▁medical ▁profession als ▁and ▁the ▁Kh mer - S ov iet ▁Friend ship ▁Hospital . ▁Also ▁in ▁ 2 0 0 9 , ▁Dr . ▁The avy ▁was ▁hon ored ▁to ▁receive ▁the ▁first ▁ever ▁International ▁Ob server ▁Fellow ship ▁awarded ▁by ▁the ▁Canadian ▁Society ▁of ▁Pl astic ▁Sur ge ons . ▁ ▁Career ▁ ▁His ▁medical ▁doctor ate ▁in ▁ 1 9 9 0 ▁from ▁the ▁University ▁of ▁Health ▁Sciences , ▁Ph nom ▁Pen h . ▁Since ▁then ▁he ▁has ▁worked ▁in ▁the ▁general ▁surg ery ▁department ▁at ▁the ▁Kh mer - S ov iet ▁Friend ship ▁Hospital . ▁In ▁ 1 9 9 4 ▁he ▁was ▁among ▁ten ▁do ctors ▁chosen ▁for ▁special ized ▁four ▁years ▁of ▁surg ical ▁training ▁with ▁Inter - Univers ity ▁Gh ent - P hn om ▁Pen h , ▁which ▁included ▁a ▁one - year ▁fellow ship ▁for ▁head ▁and ▁neck ▁and ▁pl astic ▁surg ery ▁in ▁Gh ent , ▁Belg ium . ▁In ▁ 2 0 0 9 ▁Dr . ▁The avy ▁was ▁the ▁first ▁recip ient ▁of ▁the ▁International ▁Ob server ▁Fellow ship ▁awarded ▁by ▁the ▁Canadian ▁Society ▁of ▁Pl astic ▁Sur ge ons . ▁He ▁spent ▁four ▁weeks ▁obser ving ▁ped iat ric ▁pl astic ▁surg ery , ▁c ran io fa cial ▁and ▁upper ▁lim b ▁tra uma , ▁and ▁mic ros urg