TY - STAND AU - J. Blakey AU - A. Gayle AU - M. Slater AU - G. Jones AU - M. Baldwin BT - BMJ Open DO - 10.1136/bmjopen-2019-031740 M1 - 11 PY - 2019 EP - e031740 T2 - BMJ Open TI - Observational cohort study to investigate the unmet need and time waiting for referral for specialist opinion in adult asthma in England (UNTWIST asthma) VL - 9 SN - 2044-6055 ER -