TY - RPRT TI - Identification of duck plague virus by polymerase chain reaction AU - W. R. Hansen AU - Sean E. Brown AU - S.W. Nashold AU - D.L. Knudson PY - 1999 DO - 10.2307/1592768 UR - https://pubs.usgs.gov/publication/1003826 ID - 1003826 ER -