At the Children’s Hospital at Montefiore, a group of students, mostly parents, have learned a life-saving skill — how to perform CPR, also known as cardiopulmonary resuscitation. The FDNY provided instruction on how to perform chest compressions and mouth-to-mouth rescue breaths using inflatable plastic dolls nicknamed “Rescue Annie,” reports the Daily News.

Performing CPR on infants and children is different than on adults because most adults suffer cardiac arrest due to heart problems; in children heart stoppage often stems from breathing problems such as lung disease, said Scott Ceresnak, a cardiologist at Montefiore.

An estimated 95 percent of sudden cardiac arrest victims die before reaching the hospital, according to the American Heart Association.