1. Use of a zona laser treatment system in assisted hatching: optimal laser utilization parameters 
Gregory M. Tinney, M.Sc., Marie-Lena Windt, Ph.D., Thinus F. Kruger, M.D., Carl J. Lombard, Ph.D. 
Fertility and Sterility 
Volume 84, Issue 6, Pages (December 2005)
DOI: /j.fertnstert
Copyright © 2005 American Society for Reproductive Medicine Terms and Conditions

2. FIGURE 1
Data for each treatment group comparing the percentage of hatched embryos and indicating the sample size, weighted differences, confidence intervals (CI), and values for overall effect. The graph indicates the degree of homogeneity of the samples as well as the overall outcome within each treatment group. aAssociation between experimental setting and outcome tested by Mantel-Haenzel test. bTested with a χ2 test. cTested with a Z test (difference/standard error).
Tinney. Zona assisted hatching. Fertil Steril 2005.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2005 American Society for Reproductive Medicine Terms and Conditions