The heavy wooden door groaned as I pushed past with a silver cart laden with towels, hot water, and materials to build a splint. Closed blinds shed a dim light on a young boy lying restlessly on the hospital bed. His mother rose to meet me; her eyes too tired from caring for a sick child to return my smile as I entered the room.  She had been by his side almost every moment for the last 72 hours so that her son would have a friendly face whenever he was awake during the day...