RT Journal Article SR Electronic T1 Two-tiered medicine: the increasing disparity in medical care in the UK JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 158 OP 158 DO 10.3399/bjgp21X715385 VO 71 IS 705 A1 Howard Freeman YR 2021 UL http://bjgp.org/content/71/705/158.2.abstract AB