Chattong, S
Ruangwattanasuk, O
Yindeedej, W
Setpakdee, A
Manotham, K
Article History
Received: 28 December 2016
Revised: 21 April 2017
Accepted: 10 May 2017
First Online: 22 May 2017
Competing interests
: SC receives compensation as a consultant for SS Manufacturing Co., Ltd. OR is a share holder of SS Manufacturing Co., Ltd. The remaining authors declare no conflict of interest.