5[4]Leitschuh M,Cupples LA,Kannel W,et al.High-normal blood pressure progression to hypertension in the Franmingham Heart Study.Hypertension,1991,17:22-27.
6[5]Ramachandran SV,larson MG,Leip EP,et al.Assessment of frequency of progression to hypertension in nonhypertensive participants in the Franmingham Heart Study:a cohort study.Lancet,2001,358:1682-1686.
7[9]Rohn KH,Barenbarck M,Hausberg M.The sympathetic nervous system in the pathogensis of hypertension.J Hum Hypertens,2000,14:17-21.
