▁as ▁doctor ▁of ▁medicine ▁in ▁ 1 8 9 6 . ▁During ▁the ▁Spanish – American ▁War , ▁he ▁served ▁as ▁a ▁volunte er ▁in ▁the ▁VII ▁Army ▁Corps ▁under ▁General ▁Fitz h ugh ▁Lee . ▁After wards ▁he ▁served ▁at ▁the ▁New Y ork – Pres by ter ian ▁Hospital ▁and ▁at ▁the ▁Slo ane ▁Hospital ▁for ▁Women . ▁In ▁June ▁ 1 9 0 7 ▁he ▁became ▁doctor ▁of ▁the ▁Western ▁University ▁of ▁Pennsylvania . ▁Also ▁in ▁ 1 9 0 7 ▁he ▁was ▁honor ary ▁president ▁of ▁the ▁first ▁international ▁con gress ▁for ▁the ▁study ▁of ▁tum ors ▁and ▁can cers ▁in ▁Heidel berg . ▁He ▁taught ▁g yna ec ology ▁at ▁the ▁New ▁York ▁Post - Gr adu ate ▁Medical ▁School ▁and ▁Hospital ▁and ▁g yna ec ology ▁and ▁surg ery ▁at ▁the ▁New ▁York ▁Poly cl in ic ▁Medical ▁School ▁and ▁Hospital , ▁and ▁was ▁consult ing ▁sur geon ▁and ▁gy ne colog ist ▁of ▁several ▁national ▁and ▁international ▁hosp it als . ▁ ▁During ▁his ▁military ▁time ▁he ▁met ▁the ▁Belg ian ▁Colonel ▁( MC ) ▁Jules ▁Von cken ▁at ▁the ▁ 2 8 th ▁Congress ▁of ▁the ▁Association ▁of ▁Military ▁Sur ge ons ▁of ▁the ▁United ▁States ▁( A MS US ) ▁in ▁ 1 9 2 0 , ▁where ▁they ▁had ▁the ▁idea ▁of ▁found ing ▁an ▁international ▁association ▁of ▁military ▁services . ▁Due ▁to ▁this ▁idea ▁the ▁permanent ▁committee ▁of ▁International ▁Congress es ▁of ▁Military ▁Medicine ▁and ▁Ph arm acy ▁( IC MP M