Salman Khalid

It's 1 a.m. in central Gaza, and emergency physician Salman Khalid is jolted awake by a text message that simply says, "mass casualty." As part of a three-member team providing care at al-Aqsa Hospital, Dr. Khalid rushes to the scene, where he is greeted by a heartbreaking sight—a family of five siblings, all under 18, suffering from horrific injuries after...