Perceived stress and food insecurity in pregnant and postpartum women with rheumatic diseases during the covid-19 pandemic - Espinosa Banuelos, Luis Gerardo; Ancer Rodríguez, Patricia R.; Herrera López, Mayra; Skinner Taylor, Cassandra Michele; Pérez Barbosa, Lorena; Moyeda Martinez, Rolando; Rodríguez Chávez, R. A.; Lujano Negrete, Abraham Yair; Cárdenas, A.; Galarza Delgado, Dionicio Ángel (2021)