Van Peperstraten, A.; Proctor, M. L.; Johnson, N. P.; Philipson, G. (2008-04-16). «Techniques for surgical retrieval of sperm prior to intra-cytoplasmic sperm injection (ICSI) for azoospermia». The Cochrane Database of Systematic Reviews (2): CD002807. doi:10.1002/14651858.CD002807.pub3. ISSN1469-493X. PMID18425884.
Chehensse, C.; Bahrami, S.; Denys, P.; Clément, P.; Bernabé, J.; Giuliano, F. (2013). «The spinal control of ejaculation revisited: A systematic review and meta-analysis of anejaculation in spinal cord injured patients». Human Reproduction Update19 (5): 507–526. doi:10.1093/humupd/dmt029. PMID23820516.
Van Peperstraten, A.; Proctor, M. L.; Johnson, N. P.; Philipson, G. (2008-04-16). «Techniques for surgical retrieval of sperm prior to intra-cytoplasmic sperm injection (ICSI) for azoospermia». The Cochrane Database of Systematic Reviews (2): CD002807. doi:10.1002/14651858.CD002807.pub3. ISSN1469-493X. PMID18425884.
Chehensse, C.; Bahrami, S.; Denys, P.; Clément, P.; Bernabé, J.; Giuliano, F. (2013). «The spinal control of ejaculation revisited: A systematic review and meta-analysis of anejaculation in spinal cord injured patients». Human Reproduction Update19 (5): 507–526. doi:10.1093/humupd/dmt029. PMID23820516.
Essig, Maria G. (20 Φεβρουαρίου 2007). Susan Van Houten· Tracy Landauer, επιμ. «Semen Analysis». Healthwise. WebMD. Ανακτήθηκε στις 5 Αυγούστου 2007.
worldcat.org
Van Peperstraten, A.; Proctor, M. L.; Johnson, N. P.; Philipson, G. (2008-04-16). «Techniques for surgical retrieval of sperm prior to intra-cytoplasmic sperm injection (ICSI) for azoospermia». The Cochrane Database of Systematic Reviews (2): CD002807. doi:10.1002/14651858.CD002807.pub3. ISSN1469-493X. PMID18425884.