National Center for Biotechnology Information NCBI NLM MEDLINE humans pubmed abstract nih national institutes of health national library of medicine research support non-u.s. gov't adult practice guideline enterocolitis cross infection* / diagnosis cross infection* / drug therapy cross infection* / epidemiology infection control / methods* Dale N Gerding investigators=[] affs=[]) clostridioides difficile* / drug effects pmid:20307191 doi:10.1086/651706 stuart h cohen collabauthor(name='infectious diseases society of america' clostridium infections* / diagnosis clostridium infections* / drug therapy clostridium infections* / epidemiology pseudomembranous* / diagnosis pseudomembranous* / drug therapy pseudomembranous* / epidemiology