Two studies are available: - https://www.sciencedirect.com/science/article/pii/S2095809920300631 https://www.sciencedirect.com/science/article/pii/S209580992..

Two studies are available: - https://www.sciencedirect.com/science/article/pii/S2095809920300631 https://www.sciencedirect.com/science/article/pii/S209580992... - https://www.medrxiv.org/content/10.1101/2020.03.17.20037432v1 https://www.medrxiv.org/content/10.1101/2020.03.17.20037432v...