title: A rapid method for the differentiation of Haemophilus strains. The porphyrin test;.
mesh_terms: D000622:Aminolevulinic Acid / Q000378:metabolism; D003470:Culture Media; D006190:Haemophilus / Q000145:classification* / Q000378:metabolism; D006427:Hemin / Q000096:biosynthesis; D008722:Methods; D011162:Porphobilinogen / Q000096:biosynthesis; D011166:Porphyrins / Q000096:biosynthesis*
chemical_list: D003470:Culture Media; D011166:Porphyrins; D006427:Hemin; D011162:Porphobilinogen; D000622:Aminolevulinic Acid