![Association between chronic pain medications.pdf.jpg](/retrieve/d3b43b36-3681-43bf-8658-45f8cb5d5815/Association%20between%20chronic%20pain%20medications.pdf.jpg) | Jul-2021 | Association between chronic pain medications and the severity and mortality of COVID-19: Study protocol for a case-population study | Serrano Afonso, Ancor; Pérez hernández, Concepción; Ochoa Mazarro, Dolores; Román Martínez, Manuel; Failde Martínez, Inmaculada; Montes Pérez, Antonio; López Pais, Pablo; Cánovas Martínez, Luz; Revuelta Rizo, Miren; Padilla del Rey, María Luz; Peiró, Ana; Aberasturi Fueyo, Teresa; Margarit Ferrí, César; Rojo Rodríguez, Elena; Mendiola de la Osa, Agustín; Muñoz Martinez, Manuel José; Domínguez Bronchal, María Jesús; Herrero Trujillano, Manuel; Cid Calzada, José; Fabregat-Cid, Gustavo; Hernández-Cádiz, María José; Mareque Ortega, Manuel; Gómez-Caro Álvarez Palencia, Leticia; Mayoral Rojals, Víctor | ![](/image/openAccess.png) |