Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleTHE AUTHORS REPLY.AuthorsFox, John P.; Hall, Carrie H.; Cooney, Marion K.PublicationAmerican Journal of Epidemiology, 1978, Vol 107, Issue 4, p352ISSN0002-9262Publication typeArticleDOI10.1093/oxfordjournals.aje.a112552