State of the nation's poison centers: 1994 American Association of Poison Control Centers survey of US poison centers.
Felberg
L
L
American Association of Poison Control Centers, Washington, DC 20016, USA.
Litovitz
T L
TL
Soloway
R A
RA
Morgan
J
J
D003625:Data Collection; D011039:Poison Control Centers / Q000191:economics / Q000592:standards / Q000706:statistics & numerical data*; D014481:United States