The article does briefly mention the reluctance of researchers to use female subjects due to the risk of complications in childbearing. In actually, that has been (and still is) the biggest factor in disparity in experimentation. And don't forget that scientists are only permitted to do things that corporations finance.

Oh, for sure! Women have to be far sicker than men to be taken seriously by doctors of EITHER gender, which usually means we have to be pretty much dead before they admit we "might" be sick. I've had crappy docs of both genders, but after my youngest was born and my male doc dismissed my pain I decided to never again see a male doc. And with my women docs I will tell them upfront if I think I am not being taken seriously. It's sad, but it is the world as it is now. I think it is getting better, but not damn fast enough.