共 22 条
[1]
[Anonymous], 1976, Lancet, V1, P576
[2]
BOULTON TB, 1975, EXCERPTA MED INT C S, V347, P51
[7]
FREED DLJ, 1975, LANCET, V1, P519
[8]
FRY ENS, 1976, LANCET, V2, P374