Influence of Ribeiroia ondatrae (Trematoda: Digenea) infection on limb development and survival of northern leopard frogs (Rana pipiens): effects of host stage and parasite-exposure level - Schotthoefer, A M; Koehler, A V; Meteyer, C U; Cole, R A (Can J Zool, 2003)
. Doi: 10.1139/z03-099