title: [Ecchymosis of effort syndrome, without urticaria; porphyrinuria; improvement by strong doses of nicotinamide].
authors.forename: H
authors.initials: H
authors.lastname: THIERS
mesh_terms: D004438:Ecchymosis; D006801:Humans; D009449:Neurocirculatory Asthenia; D009525:Niacin / Q000627:therapeutic use*; D009536:Niacinamide; D009539:Nicotinic Acids; D011164:Porphyrias; D012867:Skin / Q000098:blood supply*; D014570:Urologic Diseases; D014581:Urticaria
chemical_list: D009539:Nicotinic Acids; D009536:Niacinamide; D009525:Niacin
vernacular_title: Syndrome d'ecchymoses d'effort sans urticaire:  porphyrinurie; amélioration par de fortes doses d'amide nicotinique.