Effectiveness of COVID-19 vaccines in Ecuador: A test-negative design
Titel:
Effectiveness of COVID-19 vaccines in Ecuador: A test-negative design
Auteur:
Pérez-Tasigchana, Francisco Valcárcel-Pérez, Ivette Arias-Quispe, Maribel Astudillo, Lucía Bruno, Alfredo Herrera G., Marco Armas, Rubén de Mora, Doménica Pinos, Jackeline Olmedo, Alfredo Salas, Ronald Jimbo-Sotomayor, Ruth Chiluisa, Carlos Acosta, Pablo Sánchez, Xavier Whittembury, Alvaro