Earlier this year, on a cold January night, Jiang Xiaoying went from hospital to hospital in a desperate search for a doctor who could treat her 11-year old daughter, Xiaohui. Xiaohui, who had a persistent fever and cough, had spent days hooked up to an intravenous drip at a local clinic near their village home in Jiangxi province. When that didn’t relieve her symptoms, they set off to a larger healthcare center in a nearby town, where a check-up revealed fluids gathering in her lungs and o