RT Journal Article SR Electronic T1 AAP policy: Raise body checking age to 15 to cut concussions among hockey players JF AAP News JO AAP News FD American Academy of Pediatrics SP 22 OP 22 DO 10.1542/aapnews.2014356-22 VO 35 IS 6 A1 Korioth, Trisha YR 2014 UL http://www.aappublications.org/content/35/6/22.abstract AB