Published on in Vol 9, No 12 (2021): December
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/26356, first published
.
![Personalized Reminders for Immunization Using Short Messaging Systems to Improve Human Papillomavirus Vaccination Series Completion: Parallel-Group Randomized Trial Personalized Reminders for Immunization Using Short Messaging Systems to Improve Human Papillomavirus Vaccination Series Completion: Parallel-Group Randomized Trial](https://asset.jmir.pub/assets/a44f9a0f4bdca39b50e1add1309b04ff.png 480w,https://asset.jmir.pub/assets/a44f9a0f4bdca39b50e1add1309b04ff.png 960w,https://asset.jmir.pub/assets/a44f9a0f4bdca39b50e1add1309b04ff.png 1920w,https://asset.jmir.pub/assets/a44f9a0f4bdca39b50e1add1309b04ff.png 2500w)
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