共 11 条
[1]
THE CONCLUSION OF A 10-YEAR STUDY OF WATER FLUORIDATION
[J].
AMERICAN JOURNAL OF PUBLIC HEALTH AND THE NATIONS HEALTH,
1956, 46 (03)
:265-271
[2]
BASS M, CAN FAM PHYS
[3]
BUCK C, J CHRON DIS
[8]
FLEISS JL, 1981, STATISTICAL METHODS, P227
[9]
MCWHINNEY IR, 1978, PREV MED, V7, P112