The American journal of medicine
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Editorial Letter Randomized Controlled Trial
A Four-Year Randomized Controlled Trial of Hormone Replacement and Bisphosphonate, Alone or in Combination, in Women with Postmenopausal Osteoporosis - ScienceDirect.
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Editorial Letter Randomized Controlled Trial
Combined therapy with estrogen and etidronate has an additive effect on bone mineral density in the hip and vertebrae: Four-year randomized study - ScienceDirect.