Yes. In the US the clinical criteria for these stages (STRAW) are published in a consensus document in the journal Menopause. You can also visit the website of the North American Menopause Society to find the STRAW criteria.
Thanks for your information. Yes, the STRAW criteria is very helpful in differentiating menopause stages. But it can be only applied to healthy women. For those with chronic menstrual cycle irregularities (i think this is not uncommon), the application of STRAW is limited. Are there any other methods for this subpopulation?
I would start by gowing to the website of the North American Menopause society, which lists a lot of information for researchers and clinicians. They may even have some kind of a chat or connect system there...