title: Dealing with uncertainty--the challenge of the decade?
authors.forename: D
authors.initials: D
authors.lastname: Tulchinsky
mesh_terms: D005260:Female; D006801:Humans; D008727:Methotrexate / Q000627:therapeutic use*; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000188:drug therapy*
chemical_list: D008727:Methotrexate