In the article on herbal preparation use and postmenopausal breast cancer in the August 2009 issue of Cancer Epidemiology, Biomarkers & Prevention, there was an affiliation error for Dr. Nadia Obi (1). The correct affiliation follows.

Institute for Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.

1
Obi
N
,
Chang-Claude
J
,
Berger
J
, et al
. 
The use of herbal preparations to alleviate climacteric disorders and risk of postmenopausal breast cancer in a German case-control study
.
Cancer Epidemiol Biomarkers Prev
2009
;
18
:
2207
13
.