According to the study by Banerjee et al (2021), which approach was found to be the most effective for improving childhood immunization rates in India? Using appointment SMS reminders alone Providing financial incentives across the immunization schedule alone Providing a large financial incentive at the end of the immunization schedule alone A combination of local immunization ambassadors selected by the community, increasing financial incentives across the immunization schedule and SMS reminders to caregivers

According to the study by Banerjee et al (2021), which approach was found to be the most effective for improving childhood immunization rates in India? Using appointment SMS reminders alone Providing financial incentives across the immunization schedule alone Providing a large financial incentive at the end of the immunization schedule alone A combination of local immunization ambassadors selected by the community, increasing financial incentives across the immunization schedule and SMS reminders to caregivers