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September 1993 - Volume 9 - Issue 3
pp: 157-225

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Intel-correlation and Test-Retest Reliability of the Pain Disability Index (PDI) and the Oswestry Disability Questionnaire (ODQ) and Their Correlation with Pain Intensity in Low Back Pain Patients

Grönblad, Mats; Hupli, Markku; Wennerstrand, Pekka; More

The Clinical Journal of Pain. 9(3):189-195, September 1993.


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