共 18 条
[2]
Cameron J R, 1968, Invest Radiol, V3, P141, DOI 10.1097/00004424-196805000-00001
[5]
Greer FR, 1985, VITAMIN MINERAL REQU, P99
[6]
KNIGHT PJ, 1980, JAMA-J AM MED ASSOC, V243, P1244
[8]
KOVAR I, 1982, LANCET, V1, P308