Identification of Salmonella Enteritidis, Salmonella Typhimurium, Bacillus cereus, Bacillus subtilis, and Clostridium perfringens in hospital food Mohammad Hashemi; Arefeh Erfani; Fateme Asadi Touranlou; Maliheh Doustinouri; Afsaneh Shahraki; Asma Afshari;