title: Comment on 'principles of research' by Jerome Cornfield.
authors.affiliation: Division of Cancer Epidemiology and Genetics National Cancer Institute 6120 Executive Boulevard EPS 8032, Rockville, MD 20892, USA. gailm@mail.nih.gov
authors.forename: Mitchell H
authors.initials: MH
authors.lastname: Gail
mesh_terms: D035843:Biomedical Research