Think tennis: love - 15 - 30 - 40 - game over
Street (Scalp in children)
Chest
Abdomen
Long Bones (femur)
Pelvis/retroperitoneum
Richard Dutton lecture on trauma resuscitation (Jan, 2011):
http://a2.video3.blip.tv/0360005669417/Emcrit-HemostaticResuscitationWithDrRichardDutton755.mp4?brs=808&bri=32.8
Includes this slide, with data from 36,000 patients: