TY - BOOK ED - National Research Council (U.S.). ED - ebrary, Inc. TI - Use of gray literature and other data in environmental epidemiology T2 - Environmental epidemiology AV - RA565 .N38 1997eb PY - 1997/// CY - Washington, D.C. PB - National Academy of Sciences KW - Environmental health KW - Epidemiology KW - Electronic books KW - local N1 - Includes bibliographical references and index; Electronic reproduction; Palo Alto, Calif.; ebrary; 2009; Available via World Wide Web; Access may be limited to ebrary affiliated libraries UR - http://site.ebrary.com/lib/rucke/Doc?id=10041108 ER -