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HARVARD Citation
Soumerai, S. et al. (n.d.). The Reliability of Instrumental Variables in Health Care Effectiveness Research: Less Is More. Health services research. pp. 9-15. [Online].
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Soumerai, S. et al. (n.d.). The Reliability of Instrumental Variables in Health Care Effectiveness Research: Less Is More. Health services research. pp. 9-15. [Online].