Leonard Herman van Straten studied Medicine in Leiden and sat for his medical finals in 1929. He lived and practised medicine as a family doctor at 49 Statenlaan in The Hague, where he also practised medicine in the outpatients' clinic at 20 Zuidwal and at 24 Stuwstraat. In 1932 Van Straten co-founded the Haagse Medische Club with J.A. Van der Hoeven and B. Schmitz.
//J.H. Coppenhagen, Anafiem Gedoe‘iem. Overleden joodse artsen uit Nederland 1940-1945 (Rotterdam 2000) 140
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