@Book{RANME20161448145, title = "Where did syphilis come from?", author = "SOMOLINOS D\textquotesingle ARDOIS, Germ\'{a}n", publisher = "[S. l.] : Image", editor = "Image", URL = "http://bibliotecavirtual.ranm.es/ranm/es/consulta/registro.do?id=46814", year = "1965", }