Toxics and atypical manifestations. Vasculitis associated with levamisole-adulterated cocaine. A case report Silvia Calpena-Martínez; Fernando Tornero-Romero; Luis López-Cubero; Juan A. López-López;

Cervical lymph nodes in rheumatology: A diagnostic dilemma Lorena Sager; Alejandro Reibaldi; Romina Calvo; Alberto Ortiz; Susana Roverano; Federico Jauk; Sergio Paira;

Factors associated with development of end stage renal disease during hospitalization in patients with microscopic polyangiitis and granulomatosis with polyangiitis in a population of northwestern Colombia Santiago Cobaleda Cano; Andrés Felipe Echeverri García; Adriana Margarita Trejos Tenorio; Javier Darío Márquez Hernández; Jhon Edwar García Rueda; Luis Fernando Pinto Peñaranda;