@article{3ca390ed0196477b93b20b9478bbe9df,
title = "Users' guides to the medical literature: XIII. How to use an article on economic analysis of clinical practice: A. Are the results of the study valid?",
author = "Drummond, {Michael F.} and Richardson, {W. Scott} and O'Brien, {Bernie J.} and Mitchell Levine and Daren Heyland and Guyatt, {Gordon H.}",
note = "Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "1997",
month = may,
day = "21",
doi = "10.1001/jama.277.19.1552",
language = "English (US)",
volume = "277",
pages = "1552--1557",
journal = "Journal of the American Medical Association",
issn = "0098-7484",
publisher = "American Medical Association",
number = "19",
}