J. Olson

Semen analyses in 1,283 men from the United States over a 25-year period: no decline in quality.

J. H. Olson, D. Barad, H. Fisch, 1996, Fertility and sterility.

The relationship of sperm counts to birth rates: a population based study.

C. Olsson, H. Fisch, E. Goluboff, 1997, The Journal of urology.