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Disputatio medica inauguralis, de experimentali medicina practica, unice vera atque probata. / Quam, ... ex auctoritate ... Hieronymi van Alphen ... pro gradu doctoratus, ... eruditorum examini subjicit Johannes Conradus Ludolphus, Hasso-Griftensis. Ad diem 25. Augusti. Public Domain Mark. Source: Wellcome Collection.