@article{390d73cae31e424abbcd40000c97405b,
title = "Bias from requiring explicit consent from all participants in observational research: prospective, population based study",
abstract = "To evaluate the differences between adults who consent to participate in observational research, and those who do not.",
author = "{Scottish Intracranial Vascular Malformation Study (SIVMS) Steering Committee} and Rustam Al-Shahi and C{\'e}line Vousden and Charles Warlow",
year = "2005",
doi = "10.1136/bmj.38624.397569.68",
language = "English",
volume = "331",
pages = "942",
journal = "British Medical Journal (BMJ)",
issn = "0959-8138",
publisher = "BMJ Publishing Group",
number = "7522",
}