Gausman Jewel, Othman Areej, Amawi Abla, Langer Ana
Harvard T H Chan School of Public Health, Harvard University, Boston, MA 02115, USA.
School of Nursing, University of Jordan, Amman, Jordan.
Lancet. 2019 Sep 7;394(10201):825-826. doi: 10.1016/S0140-6736(19)31287-5.