| Literature DB >> 21506736 |
Kelly Cleland1, Jeffrey F Peipert, Carolyn Westhoff, Scott Spear, James Trussell.
Abstract
Mesh:
Year: 2011 PMID: 21506736 DOI: 10.1056/NEJMp1104373
Source DB: PubMed Journal: N Engl J Med ISSN: 0028-4793 Impact factor: 91.245