The individuals listed below are deemed to be experts in the subject matter of estrogen vs. natural hormone therapy; many have individual websites, books, articles, or companies (most are found on the internet).

Dr. Phil Alberts, M.D.
Dr. Lindsey Berkson
Ms. Linda Chae
Dr. Jerome Check, M.D.
Dr. Jay Ron Eker, M.D.
Dr. Judy Ellefson, D.O.
Ms. Virginia Hopkins
Ms. Kristine B. Klitzke, R.N., B.S.N.
Dr. Neils H. Lauerson, M.D.
Dr. John Lee M.D.
Dr. Helene Leonetti
Ms. Racquel Martin
Dr. Dean Roffelock, D.C.
Ms. Sherill Sellman
Mr. Wallace Simons, R.P.H.
Dr. David Zava, P.H.D.