Blood pressure in four remote populations in the INTERSALT study. - Carvalho,J.JM.; Baruzzi,R.G.; Howard,P.F.; Poulter,N.; Alpers,M.P.; Franco,L.J.; Marcopito,L.F.; Spooner,V.J.; Dyer,A.R.; Elliot,P.; Stamler,J.; Stamler,R. (Hypertension, 1989)