RT Journal Article SR Electronic T1 How doctors can close the gap: tackling the social determinants of health JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 57 OP 60 DO 10.7861/clinmedicine.11-1-57 VO 11 IS 1 A1 Stephen Atkinson A1 Ben Cottam YR 2011 UL http://www.rcpjournals.org/content/11/1/57.abstract