Lessons for cluster randomized trials in the twenty-first century: a systematic review of trials in primary care
2002 ◽
Vol 23
(4)
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pp. 409-421
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2011 ◽
Vol 64
(9)
◽
pp. 936-948
◽
Keyword(s):
Keyword(s):
Keyword(s):
2019 ◽
Vol 107
◽
pp. 89-100
◽
Keyword(s):