TY - STAND AU - T. Burkard AU - M. Rauch AU - S. Jick AU - C. Meier BT - Pharmacoepidemiol Drug Saf DO - 10.1002/pds.5221 PY - 2021 T2 - Pharmacoepidemiol Drug Saf TI - Validity of bariatric surgery codes in the UK Clinical Practice Research Datalink (CPRD) GOLD compared with Hospital Episodes Statistics SN - 1053-8569 ER -