Understanding the global epidemiology of pediatric critical illness: the power, pitfalls, and practicalities of point prevalence studies.
Weiss SL, Fitzgerald JC, Faustino EV, Festa MS, Fink EL, Jouvet P, Bush JL, Kissoon N, Marshall J, Nadkarni VM, Thomas NJ. Understanding the global epidemiology of pediatric critical illness: the power, pitfalls, and practicalities of point prevalence studies. Pediatr Crit Care Med. 2014 Sep; 15(7):660-666.