1. Wang M, Cao R, Zhang L, Yang X, Liu J, Xu M et al (2020) Remdesivir and chloroquine effectively inhibit the recently emerged novel coronavirus (2019-nCoV) in vitro. Cell Res 30(3):269–271. https://doi.org/10.1038/s41422-020-0282-0
2. General Office of the Health Commission (2020) Covid-19 prevention and control plan (6th edn). http://www.nhc.gov.cn/jkj/s3577/202003/4856d5b0458141fa9f376853224d41d7/files/4132bf035bc242478a6eaf157eb0d979.pdf. Accessed 19 Mar 2020
3. General Office of the Health Commission (2020) Covid-19 prevention and control plan (trial 7th edn). 2020. http://www.nhc.gov.cn/yzygj/s7653p/202003/46c9294a7dfe4cef80dc7f5912eb1989/files/ce3e6945832a438eaae415350a8ce964.pdf. Accessed 19 Mar 2020
4. Pareek A, Khopkar U, Sacchidanand S, Chandurkar N, Naik GS (2008) Comparative study of efficacy and safety of hydroxychloroquine and chloroquine in polymorphic light eruption: a randomized, double-blind, multicentric study. Indian J Dermatol Venereol Leprol 74(1):18–22. https://doi.org/10.4103/0378-6323.38401
5. Finbloom DS, Silver K, Newsome DA, Gunkel R (1985) Comparison of hydroxychloroquine and chloroquine use and the development of retinal toxicity. J Rheumatol 12(4):692–694