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1
096228029500400404
096228029500400404
http://dx.doi.org/10.1177/096228029500400404
Sample size determination in epidemiologic studies.
P356
Q41068291-A2A0B518-3DFB-49C6-BEA6-505D60CD2E7B
P356
096228029500400404
http://dx.doi.org/10.1177/096228029500400404