Subtype Analysis of <i>Cryptosporidium</i> Specimens from Sporadic Cases in Colorado, Idaho, New Mexico, and Iowa in 2007: Widespread Occurrence of One <i>Cryptosporidium hominis</i> Subtype and Case History of an Infection with the <i>Cryptosporidium</i> Horse GenotypeLihua Xiao, Michael J. Beach, Michele C. Hlavsa et al.|Journal of Clinical Microbiology|2009Cited by 50