Intramuscular vs intravaginal natural progesterone in patients undergoing in vitro fertilization-embryo transfer cycles. A retrospective observational, case-control study.
Papaleo
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E
Centro Natalità, Obstetrics and Gynecology Department, Vita-Salute San Raffaele University, Milan, Italy. papaleo.enrico@hsr.it
Quaranta
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L
Molgora
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M