| Literature DB >> 2497884 |
Abstract
Entities:
Keywords: Biology; Cardiovascular Effects; Cholesterol; Contraception; Contraceptive Agents; Contraceptive Agents, Estrogen; Contraceptive Agents, Female; Contraceptive Agents, Progestin; Contraceptive Methods; Cross Sectional Analysis; Developed Countries; Ethinyl Estradiol; Europe; Family Planning; Levonorgestrel; Lipid Metabolic Effects; Lipids; Longitudinal Studies; Norethindrone; Northern Europe; Oral Contraceptives; Oral Contraceptives, Combined; Oral Contraceptives, Phasic; Physiology; Research Methodology; Studies; United Kingdom
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Year: 1989 PMID: 2497884 PMCID: PMC1836457 DOI: 10.1136/bmj.298.6680.1049
Source DB: PubMed Journal: BMJ ISSN: 0959-8138