Letter grades can be seen in schools, restaurants, and, now, even medical treatments. The U.S. Preventive Task Force recently gave hormone replacement therapy a grade D recommendation.

CLEVELAND, May 30, 2012 /PRNewswire/ -- A great deal has been learned in the decade since the first results from the Women's Health Initiative (WHI) were published on July 9, 2002.

A great deal has been learned in the decade since the first results from the Women's Health Initiative (WHI) were published on July 9, 2002.

In July 2002 the publication of the first Women's Health Initiative (WHI) report caused a dramatic drop in Menopausal Hormone Therapy (HT) use throughout the world.

A March 2012 study in Lancet Oncology analyzing data from the Women's Health Initiative (WHI) reported that menopausal women taking estrogen only have a lower risk of breast cancer while women who take a combination pill (Prempro) of estrogen-progestin have an increased risk. Recognized endocrinologist Dr. Marina Johnson shares her thoughts on the data