Antiphospholipid syndrome (APS): Clinical and immunoserological differences between primary and secondary APS in a Colombian cohort Juan Camilo Díaz-Coronado; Sebastián Herrera-Uribe; Deicy Hernández-Parra; Laura Betancur-Vásquez; Jorge Lacouture-Fierro; Daniel González-Hurtado; Juanita González-Arango; Laura Uribe-Arango; María Fernanda Saavedra-Chacón; Santiago Monsalve-Yepes; Sebastián Guerra-Zarama; José David Serna-Giraldo; Juan David López-López; Julián Barbosa-Arana; María Camila Soto-Osorio; Yecenia Durango; Ricardo A. Pineda-Tamayo;

Update on available therapies for refractory lupus nephritis Juan Camilo Santacruz; Marta Juliana Mantilla; Jesús Giovanny Ballesteros; Juan Manuel Bello; John Londoño;

Lupus nephritis, an update María Cristina Martínez Ávila; Amilkar José Almanza Hurtado; Jesús Daniel Rodríguez Blanco; Tomás Rodríguez Yánez; Rodrigo Daza Arnedo; Gustavo Aroca Martínez;