- Pagona Lagiou, professor12,
- Sven Sandin, scientist3,
- Marie Lof, scientist34,
- Dimitrios Trichopoulos, professor25,
- Hans-Olov Adami, professor23,
- Elisabete Weiderpass, professor367
- 1Department of Hygiene and Epidemiology, University of Athens Medical School, Goudi, GR-115 27, Athens, Greece
- 2Department of Epidemiology, Harvard School of Public Health, Boston, USA
- 3Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- 4Department of Clinical and Experimental Medicine, University of Linköping, Linköping, Sweden
- 5Bureau of Epidemiologic Research, Academy of Athens, Athens, Greece
- 6Cancer Registry of Norway, Oslo, Norway
- 7Folkhälsan Research Center, Samfundet Folkhälsan, Helsinki, Finland
- pdlagiou{at}med.uoa.gr
Campillo-Soto repeatedly mentions “biases” but uses this epidemiological term loosely and unconventionally.1 2 Selection bias is not really a concern in a cohort study and neither is measurement bias—assessment of exposures cannot be differentially affected by the outcome if it is not known when the exposure is reported. In his …
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