Competing interests
TB
LUNG, DISEASE
This study used a technology platform (WelTel/SMS) that was developed by a non-profit organisation and a private company. A co-investigator, RTL, has financial and professional interests in both organisations. RTL reports competing interests from his involvement in the WelTel International mHealth Society and WelTel Inc, grants from National Institutes of Health (NIH), Canadian Institutes of Health Research (CIHR), BC Lung Association, British Columbia Centre for Disease Control Foundation, and Grand Challenges Canada, and non-financial support from WHO and Task Force on Digital Health for TB Control, outside the submitted work. All other authors declare that they have no competing interests.