Pre-eiaculazione (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pre-eiaculazione" in Italian language version.

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Researchers find no sperm in pre-ejaculate fluid, in Contraceptive Technology Update, vol. 14, n. 10, ottobre 1993, pp. 154-156, PMID 12286905.
Zukerman Z.; Weiss D.B.; Orvieto R., Journal of Assisted Reproduction and Genetics, vol. 20, n. 4, aprile 2003, pp. 157-159, PMID 12762415.
Researchers find no sperm in pre-ejaculate fluid, in Contraceptive Technology Update, vol. 14, n. 10, ottobre 1993, pp. 154–156, PMID 12286905.
Zukerman Z.; Weiss D.B.; Orvieto R., Short Communication: Does Preejaculatory Penile Secretion Originating from Cowper's Gland Contain Sperm?, in Journal of Assisted Reproduction and Genetics, vol. 20, n. 4, aprile 2003, pp. 157–159, DOI:10.1023/A:1022933320700, PMID 12762415.
Free M, Alexander N, Male contraception without prescription. A reevaluation of the condom and coitus interruptus (PDF), in Public Health Rep, vol. 91, n. 5, 1976, pp. 437–45, PMC 1440560, PMID 824668. URL consultato il 6 marzo 2007.

Free M, Alexander N, Male contraception without prescription. A reevaluation of the condom and coitus interruptus (PDF), in Public Health Rep, vol. 91, n. 5, 1976, pp. 437–45, PMC 1440560, PMID 824668. URL consultato il 6 marzo 2007.