title: Letter: Mycoplasmal pneumonia preceding Henoch-Schönlein purpura.
mesh_terms: D000667:Ampicillin / Q000627:therapeutic use; D001168:Arthritis / Q000209:etiology; D002648:Child; D004917:Erythromycin / Q000627:therapeutic use; D006801:Humans; D006967:Hypersensitivity / Q000209:etiology; D008297:Male; D009175:Mycoplasma Infections / Q000150:complications*; D011014:Pneumonia / Q000150:complications*; D011693:Purpura / Q000209:etiology*; D014839:Vomiting / Q000209:etiology
chemical_list: D004917:Erythromycin; D000667:Ampicillin