Anti-phosphatidylserine/prothrombin antibodies in patients with polyarteritis nodosa Susy Marcela Sánchez-Cubías; Eduardo Martín-Nares; Gabriela Hernández-Molina; Carlos A. Nuñez-Alvarez; Manuel Antonio Sedano-Montoya; Angel Gabriel Vargas-Ruiz; Andrea Hinojosa-Azaola;