title: An early parallel group trial in cardiology.
authors.affiliation: Department of Cardiology, Nottingham University, Nottingham NG7 2UH, UK jrhampton@doctors.org.uk.
authors.forename: John
authors.initials: J
authors.lastname: Hampton
mesh_terms: D002309:Cardiology / Q000266:history*; D002986:Clinical Trials as Topic / Q000266:history*; D006331:Heart Diseases / Q000188:drug therapy*; D006493:Heparin / Q000627:therapeutic use*; D049673:History, 20th Century; D006801:Humans; D012107:Research Design; D015983:Selection Bias
chemical_list: D006493:Heparin