Community Laboratory Testing for Cryptosporidium: Multicenter Study Retesting Public Health Surveillance Stool Samples Positive for Cryptosporidium by Rapid Cartridge Assay with Direct Fluorescent Antibody Testing. - Roellig DM; Yoder JS; Madison-Antenucci S; Robinson TJ; Van TT; Collier SA; Boxrud D; Monson T; Bates LA; Blackstock AJ; Shea S; Larson K; et al. (PloS one, 2017)