ECHO: context and limitations.
Jewell BL, Smith JA, Padian NS, van de Wijgert JHHM, Gollub EL, Jones HE, Ralph LJ, Hallett TB.
Jewell BL, et al. Among authors: smith ja.
Lancet. 2020 Feb 8;395(10222):e25-e26. doi: 10.1016/S0140-6736(19)33111-3.
Lancet. 2020.
PMID: 32035561
No abstract available.