"NICHD"^^ . . "Finding"^^ . "Active Phase of LaborPTNCI" . "C92943"^^ . . . "Active Phase of LaborPTNICHD" . "The period during the first stage of labor and childbirth involved with cervical dilatation, effacement, and fetal station.NCI" . "Active Phase of Labor"^^ . . . "Active Phase of Labor"^^ . "C2985356"^^ . .