Cheng H.-Y.Jian S.-W.DING-PING LIUNg T.-C.Wan-Ting HuangHSIEN-HO LIN2022-04-202022-04-2020202168-6106https://www.scopus.com/inward/record.uri?eid=2-s2.0-85084325966&doi=10.1001%2fjamainternmed.2020.2020&partnerID=40&md5=14627557aa5ed51368f7aa38368cb553https://scholars.lib.ntu.edu.tw/handle/123456789/605051Contact Tracing Assessment of COVID-19 Transmission Dynamics in Taiwan and Risk at Different Exposure Periods before and after Symptom Onsetjournal article10.1001/jamainternmed.2020.2020323568672-s2.0-85084325966