Physical inactivity in relation to self-rated eyesight: cross-sectional analysis from the English Longitudinal Study of Ageing
Lee Smith, Matthew A Timmis, Shahina Pardhan, Keziah Latham, James Johnstone, Mark Hamer
BMJ Open Ophthalmology Jan 2017, 1 (1) e000046; DOI: 10.1136/bmjophth-2016-000046
