I J Perry, B A Stewart, J Brockwell, M Khan, P Davies, D G Beevers et al
Perry I J, Stewart B A, Brockwell J, Khan M, Davies P, Beevers D G et al.
Recording diastolic blood pressure in pregnancy.
British Medical Journal 1990; 301 :1198
doi:10.1136/bmj.301.6762.1198