7Borenstein J, Whyte JL, Badamgarav E, et al. Physician practice patterns in the treatment of isolated systolic hypertension in a primary care setting[J]. J Clin Hypertens, 2002, 4 : 93-100.
8Segnan N, Battista RN, Rosso S, et al. Preventive practices of general practitioners in Torino, Italy[J]. Am J Prey Med, 1992, 8:333- 338.