TY - JOUR AU - Labrique, Alain AU - Blynn, Emily AU - Ahmed, Saifuddin AU - Gibson, Dustin AU - Pariyo, George AU - Hyder, Adnan A PY - 2017 DA - 2017/05/05 TI - Health Surveys Using Mobile Phones in Developing Countries: Automated Active Strata Monitoring and Other Statistical Considerations for Improving Precision and Reducing Biases JO - J Med Internet Res SP - e121 VL - 19 IS - 5 KW - surveys and questionnaires KW - sampling studies KW - mobile health KW - mobile phone KW - research methodology SN - 1438-8871 UR - http://www.jmir.org/2017/5/e121/ UR - https://doi.org/10.2196/jmir.7329 UR - http://www.ncbi.nlm.nih.gov/pubmed/28476726 DO - 10.2196/jmir.7329 ID - info:doi/10.2196/jmir.7329 ER -