Coital frequency and infertility: which male factors predict less frequent coitus among infertile couples? Nathan Perlis, M.D., Kirk C. Lo, M.D., Ethan D. Grober, M.D., Leia Spencer, R.N., Keith Jarvi, M.D. Fertility and Sterility Volume 100, Issue 2, Pages 511-515 (August 2013) DOI: 10.1016/j.fertnstert.2013.04.020 Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Self-reported monthly coital frequency for men presenting to male infertility clinic for consultation. Fertility and Sterility 2013 100, 511-515DOI: (10.1016/j.fertnstert.2013.04.020) Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions