The least expensive diagnostic tool.
Rosenberg
N M
NM
Cruz
M N
MN
Chamberlain
J M
JM
Knazik
S R
SR
D001049:Apnea / Q000175:diagnosis* / Q000628:therapy; D004636:Emergency Service, Hospital; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008487:Medical History Taking / Q000379:methods