The study with a million women (and hopefully fewer mistakes).
Gambacciani
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M
Genazzani
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AR
D015986:Confounding Factors, Epidemiologic; D004812:Epidemiologic Methods; D015914:Estrogen Replacement Therapy / Q000009:adverse effects* / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D006113:United Kingdom; D016387:Women's Health