Published on in Vol 4, No 3 (2018): Jul-Sept
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10090, first published
.
![User-Driven Comments on a Facebook Advertisement Recruiting Canadian Parents in a Study on Immunization: Content Analysis User-Driven Comments on a Facebook Advertisement Recruiting Canadian Parents in a Study on Immunization: Content Analysis](https://asset.jmir.pub/assets/d48b44a1213ccf971e087be8990e50f3.png 480w,https://asset.jmir.pub/assets/d48b44a1213ccf971e087be8990e50f3.png 960w,https://asset.jmir.pub/assets/d48b44a1213ccf971e087be8990e50f3.png 1920w,https://asset.jmir.pub/assets/d48b44a1213ccf971e087be8990e50f3.png 2500w)
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