Complex sentence: With Germain Sée (1818--1896) Labadie-Lagrave wrote the multi-volume "Médecine clinique", to which he made extensive contributions on urology and diseases of the liver, kidneys and bile ducts.
Split into simpler sentences: With Germain Sée (1818--1896), he was co-author of the multi-volume "Médecine clinique". In this work he contributed treatises on urology, and diseases of the liver, kidneys and bile ducts.