Another fundamental error in "What is the meaning of non-linear dose-response relationships between blood lead concentrations and IQ?" became obvious in the authors' response to comments.
Bergdahl
Ingvar A
IA
D003627:Data Interpretation, Statistical; D004305:Dose-Response Relationship, Drug; D006801:Humans; D007360:Intelligence / Q000187:drug effects*; D007361:Intelligence Tests; D007854:Lead / Q000097:blood*; D020263:Lead Poisoning, Nervous System / Q000097:blood* / Q000523:psychology*; D014018:Tissue Distribution
D007854:Lead