Published on in Vol 7, No 4 (2018): April
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/8071, first published
.
![Comparison of Online Survey Recruitment Platforms for Hard-to-Reach Pregnant Smoking Populations: Feasibility Study Comparison of Online Survey Recruitment Platforms for Hard-to-Reach Pregnant Smoking Populations: Feasibility Study](https://asset.jmir.pub/assets/f5857fb254e018ab80ac9a828ba171ac.png 480w,https://asset.jmir.pub/assets/f5857fb254e018ab80ac9a828ba171ac.png 960w,https://asset.jmir.pub/assets/f5857fb254e018ab80ac9a828ba171ac.png 1920w,https://asset.jmir.pub/assets/f5857fb254e018ab80ac9a828ba171ac.png 2500w)
1 Department of Family and Community Health, University of Pennsylvania, Philadelphia, PA, United States