The Maternal Health Task Force (MHTF) at Harvard School of Public Health and PLOS Medicine are pleased to announce the third year of our Open Access collection of research and commentary on maternal health. The continuation of this collaboration reflects our shared commitment to increasing the evidence base for approaches to improving maternal health and to making that evidence freely available for all. We are delighted to issue a call for papers for the third year of this partnership under the theme Integrating Health Care to Meet the Needs of the Mother–Infant Pair.