TY - RPRT TI - Type A influenza virus surveillance in free-flying, nonmigratory ducks residing on the eastern shore of Maryland AU - R.D. Slemons AU - W. R. Hansen AU - K. A. Converse AU - D.A. Senne PY - 2003 DO - 10.1637/0005-2086-47.s3.1107 UR - https://pubs.usgs.gov/publication/1003682 ID - 1003682 ER -