Aggarwal, A., Sharma, A. and Kumar, D. (2020) “Use of Mobile App for Real Time Data Entry and Monitoring: A Case Study of Anti-SARS-CoV-2 IgG Antibody Sero-Surveillance in all Districts of Haryana, India”, International Journal of Health Systems and Implementation Research, 4(2), pp. 63-69. Available at: https://ijhsir.ahsas-pgichd.org/index.php/ijhsir/article/view/102 (Accessed: 6May2024).