Conflict-of-interest disclosure
The authors declare no conflicts of interest.
Correspondence: Jianda Hu, Fujian Institute of Hematology, Fujian Provincial Key Laboratory of Hematology, Fujian Medical University Union Hospital, 29 Xinquan Road P.O.BOX 350001 Fuzhou, Fujian, China; Tel: +0086-13559353407; E-mail: jack123china@gmail.com