1. Stimulation of spermatogenesis with recombinant human follicle-stimulating hormone (follitropin alfa; GONAL-f®): long-term treatment in azoospermic men with hypogonadotropic hypogonadism 
Alvin M. Matsumoto, M.D., Peter J. Snyder, M.D., Shalender Bhasin, M.D., Kathryn Martin, M.D., Thomas Weber, M.D., Stephen Winters, M.D., Daniel Spratt, M.D., Jim Brentzel, B.S., Louis O'Dea, M.D. 
Fertility and Sterility 
Volume 92, Issue 3, Pages (September 2009)
DOI: /j.fertnstert
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Percentages of patients achieving any sperm concentration (>0 × 106/mL), a sperm concentration ≥1.5 × 106/mL (the primary endpoint), and a sperm concentration ≥20 × 106/mL at 3-month intervals for patients who completed treatment (n = 25).
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2009 American Society for Reproductive Medicine Terms and Conditions