Vera-Lastra O, Porres-Aguilar M. Pulmonary arterial hypertension associated with systemic sclerosis: Current diagnostic approach and therapeutic strategies. World J Rheumatol 2012; 2(2): 12-20 [DOI: 10.5499/wjr.v2.i2.12]
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Olga Vera-Lastra, MD, Department of Internal Medicine, Hospital de Especialidades, Centro Médico Nacional la Raza, IMSS, Universidad Nacional Autónoma de México, Seris y Saachila s/n, colonia La Raza, 02990 Mexico City, México. olgavera62@yahoo.com.mx
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