How much does it cost to replace a quarter of the missing cranium?

Patient question: Description: Craniotomy
Time:2012-12-01 to 2013-02-01 
Department: Guangzhou Sanjiu Brain Hospital,Surgery About one-fourth of the head, the skull was removed, and was discharged from the hospital in February 2013. How much will it cost? Can you give me an approximate price? Thank you! The skull was removed from about a quarter of the head and was discharged from the hospital in February 2013. How much will it cost? Can you give me an approximate price? Thank you! Li Xuejun, Department of Neurosurgery, Xiangya Hospital, Central South University