The purpose of this Notice of Funding Opportunity (NOFO) is to leverage NICHD clinical research Network infrastructure relevant to infants, children, women, pregnant and lactating individuals, and persons with disabilities to conduct innovative, multisite, investigator-initiated clinical trials and observational studies. This NOFO will utilize a bi-phasic (UG3/UH3), milestone-driven mechanism consisting of a start-up phase (UG3) and a full enrollment and clinical trial implementation phase (UH3). Applications subm...