title: Characterization of excystment factor (s) from an aqueous extract of Escherichia coli.
mesh_terms: D000596:Amino Acids / Q000302:isolation & purification / Q000494:pharmacology; D004926:Escherichia coli / Q000032:analysis*; D006249:Hartmannella / Q000187:drug effects* / Q000254:growth & development
chemical_list: D000596:Amino Acids