Exposure to lead and an old way of counting.
Lange
John H
JH
LaPorte
Ronald E
RE
Chang
Yue-Fang
YF
D000818:Animals; D000829:Animals, Domestic; D004283:Dog Diseases / Q000175:diagnosis*; D004285:Dogs; D004781:Environmental Exposure; D006801:Humans; D007855:Lead Poisoning / Q000175:diagnosis* / Q000662:veterinary; D018571:Sentinel Surveillance; D014481:United States / Q000453:epidemiology