Diastolic blood pressure and area of residence: multilevel versus ecological analysis of social inequity
J Merlo, P-O Östergren, O Hagberg, M Lindström, A Lindgren, A Melander, L Råstam, G Berglund
Journal of Epidemiology & Community Health Nov 2001, 55 (11) 791-798; DOI: 10.1136/jech.55.11.791