Bangladesh, April 8 -- The Awal family's nightmare began on a seemingly ordinary afternoon in July last year. Abdul Awal, a resident of Narayanganj, adjacent to the capital Dhaka, watched in absolute terror as his four-year-old daughter, Afiyah Awal, suddenly vomited fresh, bright red blood. "Since last July when she passed vomit fresh blood, I was afraid that whether it is possible to keep her safe," Abdul Awal, an engineer by profession in a private company, recalled, reflecting on the months of uncertainty that followed that first crisis. He immediately rushed his daughter to a private hospital in Narayanganj and then to another in Dhaka. It was there that doctors delivered a diagnosis: Afiyah's portal vein was dangerously narrow, and ...