title: A new ultra-micro microbioassay.
mesh_terms: D001681:Biological Assay; D003553:Cystine / Q000032:analysis; D007778:Lactobacillus; D007785:Lactose / Q000032:analysis; D008722:Methods; D008832:Microchemistry; D010205:Pantothenic Acid / Q000032:analysis
chemical_list: D010205:Pantothenic Acid; D003553:Cystine; D007785:Lactose