Referral bias in Alzheimer's disease.
Barnhart
R L
RL
van Belle
G
G
Edland
S D
SD
Larson
E
E
D000544:Alzheimer Disease / Q000453:epidemiology*; D015982:Bias; D006801:Humans; D012042:Registries; D014861:Washington / Q000453:epidemiology