César Pérez-Romero

Excessive Drinking Among Men Who Have Sex With Men Recruited From Web-Based Resources: Cross-sectional Questionnaire Study

G. Barrio, L. de la Fuente, M. Belza, 2022, JMIR public health and surveillance.

Abrupt peaks in perceived risk of occasional drug use after changing the question order in a repeated self-administered survey

E. Regidor, G. Barrio, M. Belza, 2023, Frontiers in Public Health.

Identification and validation of clinical phenotypes with prognostic implications in patients admitted to hospital with COVID-19: a multicentre cohort study

A. Borobia, D. Podzamczer, Á. Soriano, 2021, The Lancet. Infectious diseases.