- Correspondence to Dr Jonathan N Hofmann, Occupational and Environmental Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, Room 6E604, MSC 9771 Bethesda, MD 20892;
- Received May 4, 2017
- Revised October 6, 2017
- Accepted October 12, 2017
- First published October 21, 2017.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.