Published on in Vol 20, No 1 (2018): January
![Paper- or Web-Based Questionnaire Invitations as a Method for Data Collection: Cross-Sectional Comparative Study of Differences in Response Rate, Completeness of Data, and Financial Cost Paper- or Web-Based Questionnaire Invitations as a Method for Data Collection: Cross-Sectional Comparative Study of Differences in Response Rate, Completeness of Data, and Financial Cost](https://asset.jmir.pub/assets/27b3a9ac26fea959e911789f1d8c3f65.jpg 480w,https://asset.jmir.pub/assets/27b3a9ac26fea959e911789f1d8c3f65.jpg 960w,https://asset.jmir.pub/assets/27b3a9ac26fea959e911789f1d8c3f65.jpg 1920w,https://asset.jmir.pub/assets/27b3a9ac26fea959e911789f1d8c3f65.jpg 2500w)
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Published on in Vol 20, No 1 (2018): January