Out of pocket and catastrophic health spending in Mexico in the face of the COVID-19 pandemic. - Román Rodríguez-Aguilar; Jose Antonio Marmolejo Saucedo; Alejandro Zavala Landin; Miriam Rodriguez Aguilar; Liliana Marmolejo Saucedo (EAI Endorsed Trans. Pervasive Health Technol., 2023)