A guide to research methodology.
Lewis
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PA
Public Health Group, School of Postgraduate Medicine, University of Bath, UK.
Nelson
E A
EA
D003625:Data Collection / Q000379:methods*; D003627:Data Interpretation, Statistical; D006801:Humans; D015399:Nursing Research / Q000379:methods; D017712:Peer Review, Research; D015203:Reproducibility of Results; D012107:Research Design / Q000592:standards*; D018401:Sample Size