Tiodjio, Rosine E.
Sakatoku, Akihiro
Nakamura, Akihiro
Tanaka, Daisuke
Fantong, Wilson Y.
Tchakam, Kamtchueng B.
Tanyileke, Gregory
Ohba, Takeshi
Hell, Victor J.
Kusakabe, Minoru
Nakamura, Shogo
Ueda, Akira
Article History
Received: 17 April 2014
Accepted: 4 August 2014
First Online: 21 August 2014
Competing interests
: The authors declare no competing financial interests.