Comment on

• A comparison of the shock index and conventional vital signs to identify acute, critical illness in the emergency department.

  Rady MY, Smithline HA, Blake H, Nowak R, Rivers E. Rady MY, et al. Ann Emerg Med. 1994 Oct;24(4):685-90. doi: 10.1016/s0196-0644(94)70279-9. Ann Emerg Med. 1994. PMID: 8092595