He returned to Stuttgart in 1889 , where he remained running a large practice as a gynecologist and obstetrician until he retired to TÃ 1\/4 bingen a few years before his death in 1937 . He returned to Stuttgart in 1889 , where he remained running a large practice as a gynecologist and obstetrician until he retired to Tübingen a few years before his death in 1937 .