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Variation in the Extraction Efficiency of Estradiol and Progesterone in Moist and Lyophilized Feces of the Black... http://t.co/Xkk1hx2x
Variation in the Extraction Efficiency of Estradiol and Progesterone in Moist and Lyophilized Feces of the Black... http://t.co/Xkk1hx2x