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Katharina Dalton

Katharina Dalton, M.D., is the acknowledged pioneer in PMS research and treatment. In 1953, she co-authored the first medical paper on premenstrual syndrome, and shortly after opened the world's first PMS clinic in London. Daughter Wendy Holdon has long assisted with her mother's research and writing, and is the founder of PMS Help, a registered charity giving support and information to sufferers.