passages.id: split_9_validation_1238_passage
passages.type: progene_text
passages.text: There was a more rapid clearance in the infants < 2 mo of age ( 90 mL. kg(-1) . min(-1) ) and infants 2 mo to 2 yr ( 92 mL. kg(-1) . min(-1) ) than in the other groups ( means , 46 to 76 mL. kg(-1) . min(-1) ) .