Johannes Lachmann

Vaccine effectiveness against severe COVID-19 during the Omicron wave in Germany: results from the COViK study

H. Schühlen, C. Peine, T. Harder, 2023, medRxiv.

Effectiveness of vaccines in preventing hospitalization due to COVID-19: A multicenter hospital-based case-control study, Germany, June 2021 to January 2022

H. Schühlen, S. Gläser, E. Hildt, 2022, Vaccine.

EFFECTIVENESS

A. Brinkmann, M. Grossegesse, Amirmohammad Toloui, 1977, The Quest for Quality in the NHS.