@article{6f251a9464b149a5baea281402cd755d,
title = "Primary non-variceal upper gastrointestinal bleeding in NSAID and low-dose aspirin users: development and validation of risk scores for either medication in two large Dutch cohorts.",
author = "\{de Groot\}, N.L. and M.P. Hagenaars and H.M. Smeets and E.W. Steyerberg and P.D. Siersema and \{van Oijen\}, M.G.H.",
year = "2014",
language = "English",
volume = "49",
pages = "245--253",
journal = "British Journal of General Practice",
issn = "0960-1643",
publisher = "Royal College of General Practitioners",
number = "2",
}