“Efficacy and Efficiency of Sputnik V® and Sinopharm® Vaccines through Control of Neutralizing Antibodies in Health Personnel of the Caja Petrolera De Salud, La Paz – Bolivia”. Respirar 13, no. 4 (May 25, 2022): 167–174. Accessed June 16, 2026. https://respirar.alatorax.org/index.php/respirar/article/view/90.