[Etiological problems in chronic urticaria.  II.  The significance of bacterial infection].
D005767:Gastrointestinal Diseases; D006801:Humans; D014581:Urticaria / Q000209:etiology*
GASTROINTESTINAL DISEASES; URTICARIA/etiology and pathogenesis
Atiologische Probleme bei chronischer Urtikaria.  II.  Die Bedeutung der bakteriellen Infektion.