1. Is chemiluminescent immunoassay an appropriate substitution for radioimmunoassay in monitoring estradiol levels? 
Avner Hershlag, M.D., Michael Zinger, M.D., Martin Lesser, Ph.D., Gerald Scholl, M.D., Loring Bjornson 
Fertility and Sterility 
Volume 73, Issue 6, Pages (June 2000)
DOI: /S (00)

2. Figure 1
Gonadotropin group. The estradiol concentration as determined by the CIA is plotted against that determined by the RIA for each serum sample in the gonadotropin group. The line y = x is shown for comparison.
Hershlag. Estradiol CIA vs. RIA. Fertil Steril 2000.
Fertility and Sterility  , DOI: ( /S (00) )

3. Figure 2
Estrace group. The estradiol concentration as determined by the CIA is plotted against that determined by the RIA for each serum sample in the Estrace group. The line y = x is shown for comparison.
Hershlag. Estradiol CIA vs. RIA. Fertil Steril 2000.
Fertility and Sterility  , DOI: ( /S (00) )