Inter-method reliability of paper surveys and computer assisted telephone interviews in a randomized controlled trial of yoga for low back pain
Cerrada, Christian J ; Weinberg, Janice ; Sherman, Karen J ; Saper, Robert B
BMC research notes, 2014-04, Vol.7 (1), p.227-227, Article 227 [Periódico revisado por pares]England: BioMed Central Ltd
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