David Appell. Show Affiliations »
Abstract
Mesh: See more » Clinical Trials as TopicHistory, 20th CenturyHistory, 21st CenturyHumansStatistics as Topic/historyUnited States
Year: 2004 PMID: 15148386 PMCID: PMC419518 DOI: 10.1073/pnas.0402953101
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205