I would think the menopause society would have been a good start. I found the top endocrinologist in my city and took all the articles I could find that supported my reasons for wanting hrt. She never stopped prescribing it even after the womans health study. She did spend a lot of time going back through all of my labs first. I think there are some online womens clinics that can prescribe it. I'm afraid I've forgotten the name of them. Check youtube. There are several doctors on there that talk about hrt for older women that may have resources.