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comparing a web-based versus a paper version of a #sociodemographic #questionnaire http://t.co/V6W79UBfQB #IJPH #publichealth
comparing a web-based versus a paper version of a #sociodemographic #questionnaire http://t.co/V6W79UBfQB #IJPH #publichealth
comparing a web-based versus a paper version of a #sociodemographic #questionnaire http://t.co/V6W79UBfQB #IJPH #publichealth
comparing a #web-based and paper versions of a #socio-demographic #questionnaire http://t.co/IJipu64aAi #IJPH #publichealth
@amednews interesting!we published a paper comparing web-&paper-based versions of same questionnaire,they didn't differ http://t.co/O0ySELEL