Additional file 1 of Effects of an mHealth voice message service (mMitra) on maternal health knowledge and practices of low-income women in India: findings from a pseudo-randomized controlled trial MurthyNirmala ChandrasekharanSubhashini PrakashMuthu Perumal GanjuAakash PeterJoanne KaongaNadi MechaelPatricia 2020 Additional file 1 Supplement 1. Time 1 (Baseline) Survey. Questionnaire FIRST INTERVIEW: Impact Evaluation of mMitra.