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2. Anomalies of the genital tract;Campbell,1970
3. Su di un caso di “virga palmata”;Bisotti;Rassegna Internazionale Clinica E. Terapia,1953
4. Adult congenital penile deformity. Case report;Glanz;Plast. Reconstr. Surg.,1968
5. Notes on the development of the prepuce;Hunter;J. Anat.,1935