MAP20080028770 Ryker, Sarah J. Combining occurrence and toxicity information to identify priorities for drinking-water mixture research / Sarah J. Ryker, Mitchell J. Small En: Risk analysis : an international journal. - McLean, Virginia : Society for Risk Analysis, 1987-2015 = ISSN 0272-4332. - 01/06/2008 Tomo 28 Número 3 - 2008 I. Small, Mitchell J. . II. Title.