Tomonaga, Y., Zens, K. D., Lang, P., Born, R., Schwenkglenks, M., & and the Swiss Sentinel Surveillance Network. (2021). Productivity losses due to influenza and influenza-like illness in Switzerland: results of the Swiss Sentinel Surveillance Network in a non-pandemic era. Swiss Medical Weekly, 151(3334), w30022. https://doi.org/10.4414/SMW.2021.w30022