共 16 条
[1]
[Anonymous], 2003, LANCET, V361, P977
[3]
CONSORT statement: extension to cluster randomised trials
[J].
BMJ-BRITISH MEDICAL JOURNAL,
2004, 328 (7441)
:702-708
[9]
Robinson A, 2005, RURAL REMOTE HLTH, V5, P427
[10]
Schulz KF, 2010, ANN INTERN MED, V152, P726, DOI 10.7326/0003-4819-152-11-201006010-00232