TY - JOUR T1 - Extracting smoking data from GP electronic health records JF - British Journal of General Practice JO - Br J Gen Pract SP - 58 LP - 59 DO - 10.3399/bjgp21X714701 VL - 71 IS - 703 AU - Nigel J Masters Y1 - 2021/02/01 UR - http://bjgp.org/content/71/703/58.3.abstract N2 - Although health promotion data such as body mass index have been extracted from GP records for many years, there has been far less … ER -