Published on in Vol 9, No 3 (2021): March
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/26091, first published
.
![Effectiveness of a Smartphone App to Promote Healthy Weight Gain, Diet, and Physical Activity During Pregnancy (HealthyMoms): Randomized Controlled Trial Effectiveness of a Smartphone App to Promote Healthy Weight Gain, Diet, and Physical Activity During Pregnancy (HealthyMoms): Randomized Controlled Trial](https://asset.jmir.pub/assets/1235c7265f39d617a7cccfa6d5feb80b.png 480w,https://asset.jmir.pub/assets/1235c7265f39d617a7cccfa6d5feb80b.png 960w,https://asset.jmir.pub/assets/1235c7265f39d617a7cccfa6d5feb80b.png 1920w,https://asset.jmir.pub/assets/1235c7265f39d617a7cccfa6d5feb80b.png 2500w)
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