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Ecological Bias and Data Entry Errors: A Reply to Hendryx and Ahern

Borak, Jonathan MD; Slade, Martin D. MPH; Allen, Richard Read MS; Salipante-Zaidel, Catherine MEM; Fields, Cheryl A. MPH

Journal of Occupational & Environmental Medicine: July 2012 - Volume 54 - Issue 7 - p 770–773
doi: 10.1097/JOM.0b013e31825cb7c4
Letters to the Editor