▁Hospital , ▁where ▁he ▁was ▁influ ential ▁in ▁sh aping ▁the ▁department ’ s ▁mission ▁and ▁ment oring ▁future ▁gener ations ▁of ▁an est h esi olog ists . ▁During ▁this ▁time ▁he ▁developed ▁a ▁n erve ▁blocking ▁technique ▁and ▁became ▁the ▁first ▁an est h esi ologist ▁to ▁set ▁up ▁a ▁n erve ▁blocking ▁clin ic ▁for ▁pain ▁relief . ▁Two ▁years ▁later , ▁he ▁was ▁appointed ▁the ▁second ▁American ▁professor ▁of ▁an est h esi ology ▁at ▁New ▁York ▁University ▁School ▁of ▁Medicine . ▁ ▁He ▁became ▁director ▁at ▁Gold water ▁Memorial ▁Hospital ▁in ▁ 1 9 3 8 ▁and ▁Director ▁at ▁University ▁Hospital ▁a ▁de cade ▁later . ▁Also ▁in ▁ 1 9 3 8 , ▁he ▁accepted ▁a ▁guest ▁professor ship ▁at ▁Oxford ▁University ▁in ▁England , ▁and , ▁a ▁year ▁later , ▁at ▁University ▁of ▁Ros ario ▁in ▁Argentina . ▁He ▁also ▁accepted ▁visit ing ▁appoint ments ▁in ▁Boh emia , ▁Canada , ▁Cuba , ▁Czech oslov ak ia , ▁France , ▁Japan , ▁Mexico ▁and ▁South ▁Africa ▁– ▁and ▁was ▁induct ed ▁into ▁the ▁medical ▁society ▁of ▁each ▁respective ▁nation . ▁ ▁During ▁World ▁War ▁II , ▁R oven st ine ▁served ▁on ▁the ▁Army ▁Ad vis ory ▁Board ▁and ▁was ▁responsible ▁for ▁an ▁order ▁to ▁Army ▁general ▁hosp it als ▁placing ▁operating ▁rooms ▁in ▁charge ▁of ▁an est h esi olog ists . ▁The ▁practice ▁later ▁became ▁general . ▁ ▁R oven st ine ▁was ▁a ▁co - found er ▁of ▁the ▁re organ ized ▁American