共 4 条
[1]
HOWELL T, 1949, Geriatrics, V4, P281
[2]
HOWELL TH, 1950, GERIATRICS, V5, P90
[3]
POMERANCE A, 1965, BRIT HEART J, V27, P697
[4]
SMITH G S, 1950, Lancet, V1, P24