The parents of a one-year-old boy in China are desperately trying to rid their son of a rare disease that is slowly "turning him into stone".
The young boy named "An An" from Sichuan Province in south-western China suffers from Albers-Schonberg disease - also known as osteopetrosis or "stone bone" - an extremely rare inherited disorder that causes the bones to harden and become denser.
Left untreated, the million-in-one-chance illness can lead to fractures and loss of cranial nerve function causing blindness, deafness and facial paralysis.
Sadly for An An, there is no cure for the disease, but his mum and dad, Dai Qixia and Yuan Guohui, are refusing to give up and are trying every curative therapy that they can afford.