TY - JOUR TI - A review of instrumental variable estimators for Mendelian randomization AU - Stephen Burgess AU - Dylan S. Small AU - Simon G. Thompson JO - Statistical Methods in Medical Research PY - 2015 VL - 26 IS - 5 DO - 10.1177/0962280215597579 UR - https://doi.org/10.1177/0962280215597579 ER -