title: Estrogen levels and thrombophilia--an intervening variable or a confounder?
authors.forename: José
authors.initials: J
authors.lastname: Bellver
authors.forename: Carlos
authors.initials: C
authors.lastname: Simón
authors.forename: Antonio
authors.initials: A
authors.lastname: Pellicer
mesh_terms: D004967:Estrogens; D005260:Female; D006801:Humans; D016471:Ovarian Hyperstimulation Syndrome; D019851:Thrombophilia
chemical_list: D004967:Estrogens