1. On the similarity between the signs of haematocele and early malignant disease of the testicle;Woolfenden;Med. Press Circ.,1911
2. Hydrocele, spermatocele, hematocele;Guiteras,1912
3. Hydrocele, varicocele, hematocele, and spermatocele;Dodson,1962
4. Essentials of Urinary and Genital Diseases;Haddad,1946
5. Lower urinary and male genital tract;Kovac,1983