共 35 条
[23]
MEYER RA, 1977, PEDIATRIC ECHOCARDIO, P265
[24]
OAKLEY CM, 1974, CIRC RES, V35, P152
[27]
SANDERSON JE, 1978, BRIT HEART J, V40, P596
[28]
SNEDECOR GW, 1980, STATISTICAL METHODS, P83
[30]
STJOHNSUTTON MG, 1980, BRIT HEART J, V44, P309