Re: Glyphosate Use and Cancer Incidence in the Agricultural Health Study.

The article offers the authors' response to glyphosate use and cancer incidence in the Agricultural Health Study (AHS). The authors say that exposure assessment in the AHS was complete at baseline, and the study authors used a well-respected approach to fill in missing data. They also urges the AHS investigators to refine their approach and improve the ability to understand the impacts of glyphosate exposure.