Henry was in critical condition when he arrived at the er. his heart had stopped, but to quick intervention he survived the ordeal. as he healed, he discussed having the sense of floating in light while feeling peace and joy. henry seems to have

Chen's research team randomly assigned some newborns and their mothers either to a breastfeeding promotion group (where breastfeeding was encouraged, but not required) or to a normal pediatric care group (where breastfeeding was neither encouraged nor discouraged). which research method did they use?