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001 DGL4240
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245 1 _aBMC Medical Research Methodology
246 _aBMC Med Res Methodol
260 _bBioMed Central
650 1 2 _aResearch
_918038
650 1 2 _aResearch
_xmethods
650 2 _aPeriodicals
856 4 0 _uhttp://www.biomedcentral.com/bmccmedresmethodol
_zClick here to access online journal
999 _c62079
_d62079