共 30 条
[3]
BEVEGARD S, 1974, ACTA MED SCAND, V196, P473
[6]
Cochran, 1968, STAT METHODS, P299
[8]
DISERIO FJ, 1984, JAMA-J AM MED ASSOC, V251, P2960
[9]
DUNCAN G, 1980, LANCET, V2, P1053