Mercado, U Classification of periarteritis nodosa and microscopic periarteritis: comment on the article by Watts et al. [electronic resource] - Arthritis and rheumatism Apr 1997 - 788-9 p. digital Publication Type: Comment; Letter ISSN: 0004-3591 Standard No.: 10.1002/art.1780400431 doi Subjects--Topical Terms: AdultArteritis--classificationDiagnosis, DifferentialFemaleGlomerulonephritis--complicationsHumansMaleMiddle AgedPolyarteritis Nodosa--classification