Fert and Stert is an excellent journal; I do not know if this study replicated earlier studies. One negative for this study is that the numbers of subjects were small.
Yes, I noticed that. If I recall correctly, wasn't there a medical abstract/lookup service run out of Harvard a number of years ago? A medical Lexus/Nexus (sp) as it were. I wouldn't be surprised to find a study like this having been done also by Ortho/Nov or some such company.