The first few X cases and contacts (FFX) investigation protocol for coronavirus disease 2019 (COVID-19), 23 February 2020, version 2.2
Citation
World Health Organization. (2020). The first few X cases and contacts (FFX) investigation protocol for coronavirus disease 2019 (COVID-19), 23 February 2020, version 2.2. World Health Organization. https://iris.who.int/handle/10665/332023. License: CC BY-NC-SA 3.0 IGO
Description
77 p.Document number
WHO/2019-nCoV/FFXprotocol/2020.3Language
Englishрусский
中文