Comment Reply

I am very concerned about the reliability and the validity of this paper. It would be very helpful to have a link to the paper so that one can evaluate whether or not it is indeed a valid study. Is there a statistically significant causality between not taking estrogen and death. It seems to me that the age group the study is talking about is an age group that is at higher risk of death just due to age and various health problems. So to narrow down causality would be very difficult.