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Ojha RP, Offutt-Powell TN, Evans EL, et al. Correlation coefficients in ecologic studies of environment and cancer. Arch Environ Occup Health. 2011;66(4):241-4doi: 10.1080/19338244.2010.539641.
Ojha, R. P., Offutt-Powell, T. N., Evans, E. L., & Singh, K. P. (2011). Correlation coefficients in ecologic studies of environment and cancer. Archives of environmental & occupational health, 66(4), 241-4. https://doi.org/10.1080/19338244.2010.539641
Ojha, Rohit P, et al. "Correlation coefficients in ecologic studies of environment and cancer." Archives of environmental & occupational health vol. 66,4 (2011): 241-4. doi: https://doi.org/10.1080/19338244.2010.539641
Ojha RP, Offutt-Powell TN, Evans EL, Singh KP. Correlation coefficients in ecologic studies of environment and cancer. Arch Environ Occup Health. 2011;66(4):241-4. doi: 10.1080/19338244.2010.539641. PMID: 22014198.
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