1 Department of Laboratory Medicine, Busan Paik Hospital, Inje University College of Medicine, 75 Bokji-Ro Busanjin-Gu, Busan, 47392, Korea.
2 Department of Laboratory Medicine, Busan Paik Hospital, Inje University College of Medicine, 75 Bokji-Ro Busanjin-Gu, Busan, 47392, Korea. liring@hanmail.net.