Sergio G. Moreira

Side-effect profile of sildenafil citrate (Viagra) in clinical practice.

L. Lipshultz, R. Brannigan, E. Kim, 2000, Urology.

Trinucleotide (CAG) repeat polymorphisms in the androgen receptor gene: molecular markers of risk for male infertility.

D. Lamb, L. Lipshultz, E. Yong, 2001, Fertility and sterility.