To enhance his skill in biochemistry, he trained in the laboratory of Hugo Theorell (who later won The Nobel Prize in Physiology or Medicine in 1955) at the Nobel Medical Institute in Stockholm for 18 months during 1946-1947.
В 1946—1947 провел 18 месяцев в Стокгольме, работая в Нобелевском медицинском институте в лаборатории Хуго Теодора (лауреата Нобелевской премии по физиологии и медицине 1955 года).