Supplementing online surveys with a mailed option to reduce bias and improve response rate: the National Dental Practice-Based Research Network
2014 ◽
Vol 74
(4)
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pp. 276-282
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2016 ◽
Vol 40
(3)
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pp. 332-358
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2010 ◽
Vol 141
(7)
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pp. 889-899
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2014 ◽
Vol 46
(2)
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pp. A4
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2020 ◽
Vol 33
(5)
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pp. 687-697