TY - RPRT TI - Ichthyophthiriasis: immersion immunization of rainbow trout (Salmo gairdneri) using Tetrahymena thermophila as a protective immunogen AU - K. Wolf AU - M.E. Markiw PY - 1982 UR - https://pubs.usgs.gov/publication/1014087 ID - 1014087 ER -