Triana-Reyes, Silvia, Martínez-Sandoval, Gloria, Rodríguez-Franco, Norma, Chapa-Arizpe, María, Rodríguez-Pulido, Jesús, Alcázar-Pizaña, Andrea, AND Riega-Torres, Janett. " Salivary rheumatoid factor in primary and secondary Sjögren’s syndrome." Journal of Oral Research [Online], Volume 8 Number 3 (30 June 2019)