@article{dcbc2515ca3f4a9c8d7cc87ebe7d4913,
title = "Instrumental variable methods in clinical research",
keywords = "bias, confounding, instrumental variable, statistical analysis",
author = "Emilia Bagiella and Tara Karamlou and Helena Chang and John Spivack",
year = "2015",
month = oct,
day = "1",
doi = "10.1016/j.jtcvs.2015.07.056",
language = "English",
volume = "150",
pages = "779--782",
journal = "Journal of Thoracic and Cardiovascular Surgery",
issn = "0022-5223",
publisher = "Elsevier Inc.",
number = "4",
}