F Difford, J P Telling, K R Davies, J E Fornear, C A Reading
Difford F, Telling J P, Davies K R, Fornear J E, Reading C A.
Continuous opportunistic and systematic screening for hypertension with computer help: analysis of non-responders.
Br Med J (Clin Res Ed) 1987; 294 :1130
doi:10.1136/bmj.294.6580.1130