Manikandan R, Srirangam SJ, Pearson E, Collins GN. Early and late morbidity after vasectomy: a comparison of chronic scrotal pain at 1 and 10 years. BJU International. 2004, 93 (4): 93, 571–574. PMID 15008732. doi:10.1111/j.1464-410X.2003.04663.x.
Manikandan R, Srirangam SJ, Pearson E, Collins GN. Early and late morbidity after vasectomy: a comparison of chronic scrotal pain at 1 and 10 years. BJU International. 2004, 93 (4): 93, 571–574. PMID 15008732. doi:10.1111/j.1464-410X.2003.04663.x.