en Weisz G (). „The Emergence of Medical Specialization in the Nineteenth Century”. Bull Hist Med. 77 (3): 536–574. doi:10.1353/bhm.2003.0150. PMID14523260.
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en Weisz G (). „The Emergence of Medical Specialization in the Nineteenth Century”. Bull Hist Med. 77 (3): 536–574. doi:10.1353/bhm.2003.0150. PMID14523260.