There are two more articles attached below in addition to these 3 articles.
Huo, X., Krumholz, H. M., Bai, X., Spatz, E. S., Ding, Q., Horak, P., Zhao, W., Gong, Q., Zhang, H., Yan, X., Sun, Y., Liu, J., Wu, X., Guan, W., Wang, X., Li, J., Li, X., Spertus, J. A., Masoudi, F. A., & Zheng, X. (2019). Effects of Mobile Text Messaging on Glycemic Control in Patients With Coronary Heart Disease and Diabetes Mellitus: A Randomized Clinical Trial. Circulation. Cardiovascular quality and outcomes, 12(9), e005805. 
https://doi.org/10.1161/CIRCOUTCOMES.119.005805

Dobson, R., Whittaker, R., Jiang, Y., Maddison, R., Shepherd, M., McNamara, C., Cutfield, R., Khanolkar, M., & Murphy, R. (2018). Effectiveness of text message based, diabetes self-management support programme (SMS4BG): two arm, parallel randomised controlled trial. BMJ (Clinical research ed.), 361, k1959. https://doi.org/10.1136/bmj.k1959

Sahin, C., Courtney, K. L., Naylor, P. J., & E Rhodes, R. (2019). Tailored mobile text messaging interventions targeting type 2 diabetes self-management: A systematic review and a meta-analysis. Digital health, 5, 2055207619845279. https://doi.org/10.1177/2055207619845279