Published on in Vol 25 (2023)
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/43678, first published
.
![The Synergistic Effect of Nurse Proactive Phone Calls With an mHealth App Program on Sustaining App Usage: 3-Arm Randomized Controlled Trial The Synergistic Effect of Nurse Proactive Phone Calls With an mHealth App Program on Sustaining App Usage: 3-Arm Randomized Controlled Trial](https://asset.jmir.pub/assets/f8ba0ede9b591d75094875ae0853cebf.png 480w,https://asset.jmir.pub/assets/f8ba0ede9b591d75094875ae0853cebf.png 960w,https://asset.jmir.pub/assets/f8ba0ede9b591d75094875ae0853cebf.png 1920w,https://asset.jmir.pub/assets/f8ba0ede9b591d75094875ae0853cebf.png 2500w)
1 School of Nursing, The Hong Kong Polytechnic University, Kowloon, China (Hong Kong)
2 The Hong Kong Lutheran Social Service, Ho Man Tin, China (Hong Kong)