So, just do it...go upstream.
Hargarten
S W
SW
Department of Emergency Medicine, Medical College of Wisconsin, Milwaukee 53226, USA. hargart@post.its.mcw.edu
D004635:Emergency Medicine / Q000639:trends; D006801:Humans; D012861:Skating / Q000293:injuries*; D014947:Wounds and Injuries / Q000517:prevention & control*