▁Ped iat ric ▁End ocr ine ▁Division ▁at ▁Bab ies ▁Hospital . ▁In ▁ 1 9 6 6 ▁Gr umb ach ▁was ▁rec ru ited ▁to ▁the ▁University ▁of ▁California ▁San ▁Francisco ▁as ▁chairman ▁of ▁the ▁Department ▁of ▁Ped iat rics , ▁and ▁in ▁ 1 9 8 3 ▁he ▁was ▁named ▁the ▁first ▁Edward ▁B . ▁Shaw ▁Dist ingu ished ▁Professor ▁of ▁Ped iat rics . ▁ ▁Gr umb ach ▁served ▁as ▁chairman ▁of ▁the ▁Department ▁of ▁Ped iat rics ▁at ▁University ▁of ▁California ▁San ▁Francisco ▁for ▁over ▁two ▁dec ades , ▁transform ing ▁the ▁department ▁into ▁one ▁of ▁the ▁leading ▁academic ▁cent ers ▁for ▁ped iat rics ▁in ▁the ▁country . ▁Gr umb ach ▁stepped ▁down ▁as ▁chairman ▁of ▁ped iat rics ▁in ▁ 1 9 8 6 ▁and ▁retired ▁in ▁ 1 9 9 4 , ▁but ▁he ▁remained ▁active ▁in ▁the ▁field ▁until ▁December ▁ 2 0 1 4 . ▁▁ ▁Gr umb ach ▁ ▁made ▁many ▁sem inal ▁contributions ▁the ▁understanding ▁of ▁ped iat ric ▁end ocr in ology ▁including ▁extensive ▁studies ▁on ▁the ▁development ▁and ▁function ▁of ▁the ▁end ocr ine ▁and ▁ne uro end ocr ine ▁systems ▁from ▁f etal ▁life ▁through ▁pub ert y , ▁as ▁well ▁as ▁studies ▁of ▁the ▁h orm onal ▁and ▁gen etic ▁effects ▁on ▁growth , ▁b one ▁m atur ation , ▁pub ert y , ▁sex ▁determ ination ▁and ▁different iation ▁( and ▁their ▁dis orders ) ▁and ▁disease - ca using ▁path ology . ▁He ▁was ▁a ▁past