共 27 条
[1]
AYERS WR, 1964, NEW YORK STATE J MED, V64, P1929
[6]
FUSGEN I, 1978, GERONTOLOGY, V24, P37
[8]
GORDON M, 1985, CAN MED ASSOC J, V132, P743
[9]
GULATI RS, 1983, LANCET, V2, P267