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PDFPage 601
. 1993 Apr;83(4):601.
Study of Hypertension in Urban Bus Drivers Questioned
4. Albright and Winkleby Respond to Li
Cheryl L Albright
, Marilyn A Winkleby
Cheryl L Albright
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Marilyn A Winkleby
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PMCID: PMC1694464
See the letter "Study of hypertension in urban bus drivers questioned. Study design as source of bias." on page 600b.