{Reference Type}: Letter {Title}: Developing guidelines for COVID-19 management: A moving target. An invited commentary on "Evidence based management guideline for the COVID-19 pandemic - Review article". {Author}: Gallaher J;Charles A; {Journal}: Int J Surg {Volume}: 78 {Issue}: 0 {Year}: 06 2020 {Factor}: 13.4 {DOI}: 10.1016/j.ijsu.2020.04.030 {Abstract}: