Addressing adverse social determinants of health in pediatric primary care: Study protocol for a hybrid type 2 effectiveness-implementation randomized controlled trial in two national pediatric practice-based research networks. - Brochier A; Torres A; Tyrrell H; Paz KB; Wexler MG; Griffith M; Joiner T; Magardino A; Messmer E; Rogers S; Scheindlin B; Serwint JR; et al. (Contemporary clinical trials, 2024)