Estimating the generation interval for coronavirus disease (COVID-19) based on symptom onset data, March 2020 Ganyani, Tapiwa and Kremer, Cécile and Chen, Dongxuan and Torneri, Andrea and Faes, Christel and Wallinga, Jacco and Hens, Niel, Eurosurveillance, 25, 2000257 (2020), https://doi.org/10.2807/1560-7917.ES.2020.25.17.2000257