G Piaggio, H von Hertzen, D A Grimes, P F Van Look. Show Affiliations »
Abstract
Entities: Chemical
Mesh: See more » BiasContraceptives, Oral, CombinedContraceptives, PostcoitalFemaleHumansLevonorgestrelPregnancyRandomized Controlled Trials as TopicTime Factors
Substances: See more » Contraceptives, Oral, CombinedContraceptives, PostcoitalLevonorgestrel
Year: 1999 PMID: 10073517 DOI: 10.1016/s0140-6736(98)05718-3
Source DB: PubMed Journal: Lancet ISSN: 0140-6736 Impact factor: 79.321