TY - RPRT TI - Brain acetycholinesterase activity in botulism-intoxicated mallards AU - Tonie E. Rocke AU - M.D. Samuel PY - 1991 DO - 10.7589/0090-3558-27.2.317 UR - https://pubs.usgs.gov/publication/1003979 ID - 1003979 ER -