1. Comparison of intrauterine and intracervical insemination with frozen donor sperm: a meta-analysis 
Jeffrey M Goldberg, M.D., Edward Mascha, M.S., Tommaso Falcone, M.D., Marjan Attaran, M.D. 
Fertility and Sterility 
Volume 72, Issue 5, Pages (November 1999)
DOI: /S (99)00374-X

2. Figure 1
Random effects meta-analysis. The odds ratio was calculated with the general estimating equation method using raw data.
Goldberg. IUI vs ICI. Fertil Steril 1999.
Fertility and Sterility  , DOI: ( /S (99)00374-X)