Using a low-cost, real-time electronic immunization registry in Pakistan to demonstrate utility of data for immunization programs and evidence-based decision making to achieve SDG-3: Insights from analysis of Big Data on vaccines. - Danya Arif Siddiqi; Sara Abdullah; Vijay Kumar Dharma; Mubarak Taighoon Shah; Mohammed Adil Akhter; Ali Habib; Aamir Javed Khan; Subhash Chandir (Int. J. Medical Informatics, 2021)