Sex-specific Difference for Small Cell Lung Cancer from Immunotherapy Advancement You Mo; Yiwei Qin; Jian Shangguan; Duncan Wei; Meng Wu; Dawei Chen; Jinming Yu;

Characteristics and Risk Factors Associated With Mortality in a Multicenter Spanish Cohort of Patients With COVID-19 Pneumonia José Ramón Muñoz-Rodríguez; Francisco Javier Gómez-Romero; José Manuel Pérez-Ortiz; Pilar López-Juárez; Juan Luis Santiago; Leticia Serrano-Oviedo; Francisco Javier Redondo-Calvo;

The Emergence of COVID-19 as a Cause of Death in 2020 and its Effect on Mortality by Diseases of the Respiratory System in Spain: Trends and Their Determinants Compared to 2019 Joan B. Soriano; Adrián Peláez; Esteve Fernández; Laura Moreno; Julio Ancochea;