Keddy Karen H, Migliori Giovanni B, Van Der Walt Martie
South African Medical Research Council, Pretoria 0001, South Africa.
Istituti Clinici Scientifici Maugeri IRCCS, Tradate, Italy.
Lancet Glob Health. 2020 Nov;8(11):e1357-e1358. doi: 10.1016/S2214-109X(20)30413-7.