1. Serum testosterone levels in patients with nonmosaic Klinefelter syndrome after testicular sperm extraction for intracytoplasmic sperm injection 
Hiroshi Okada, M.D., Ph.D., Toshiro Shirakawa, M.D., Ph.D., Tomomoto Ishikawa, M.D., Kazumasa Goda, M.D., Masato Fujisawa, M.D., Ph.D., Sadao Kamidono, M.D., Ph.D. 
Fertility and Sterility 
Volume 82, Issue 1, Pages (July 2004)
DOI: /j.fertnstert

2. FIGURE 1
Serum testosterone concentrations before and at 6 and 12 months after TESE were measured. Seven patients (No. 1–7) underwent conventional TESE, and 17 patients (No. 8–24) underwent microdissection TESE. The red circle, green square, and blue triangle indicate testosterone concentration before and at 6 and 12 months after TESE, respectively.
Okada. T levels after TESE in Klinefelter patients. Fertil Steril 2004.
Fertility and Sterility  , DOI: ( /j.fertnstert )