RT Journal Article SR Electronic T1 Report from Portugal JF Injury Prevention JO Inj Prev FD BMJ Publishing Group Ltd SP 69 OP 69 DO 10.1136/ip.6.1.69-a VO 6 IS 1 A1 Helena Menezes YR 2000 UL http://injuryprevention.bmj.com/content/6/1/69.2.abstract AB