Circannual rhythms of sperm parameters of fertile men

Methods for cosinor-rhythmometry.

Wayne E. Nelson, Yuen-Chai Tong, J K Lee et al. · PubMed · 1980 · 1.7K citations

Within-subject variability of human semen in regard to sperm count, volume, total number of spermatozoa and length of abstinence

Daniel Schwartz, A. Laplanche, Pierre Jouannet et al. · Reproduction · 1979 · 159 citations · Full text

Veterinary Medicine, Biostatistics, Fertility +14

Circannual rhythm in human sperm count revealed by serially independent sampling

Wilie S. Tjoa, Michael H. Smolensky, Bartholomew P. Hsi et al. · Fertility and Sterility · 1982 · 105 citations

Medicine, Biomedical Sciences, Obstetrics +14

Circadian and circannual rhythms in sexual activity and plasma hormones (FSH, LH, Testosterone) of five human males

Alain Reinberg, M Lagoguey · Archives of Sexual Behavior · 1978 · 90 citations

Medicine, Endocrinology, Physiology +17

Secular Trend in Reported Sperm Counts

W.H. James · Andrologia · 2009 · 87 citations

Social Sciences, Demography, Fertility +11