Letter: Use of aminopyrine in breath tests.
D000380:Agranulocytosis / Q000139:chemically induced; D000632:Aminopyrine / Q000009:adverse effects; D001944:Breath Tests; D006801:Humans; D008111:Liver Function Tests; D010653:Phenylbutazone / Q000009:adverse effects
D000632:Aminopyrine; D010653:Phenylbutazone