Collection of letters to the editor of New England Journal of Medicine rebuffing the Formaldehyde study.
http://www.nejm.org/doi/full/10.1056/NEJMc1502242#.VTWlmV3JqZc.facebook
http://www.nejm.org/doi/full/10.1056/NEJMc1502242#.VTWlmV3JqZc.facebook