参考文献:
COATS, STEVEN J. BIAN, HAIYAN CONNOLLY, PETER J. BIGNAN, GILLES CAI, CHAOZHONG DAX, SCOTT L. DECORTE, BART L. LIN, SHU-CHEN LIU, LI MACIELAG, MARK J. PITIS, PHILIP M. ZHANG, YUE-MEI ZHU, BIN HE, WEI Patent: US211/1552 A1, 211 Location in patent: Page/Page column 6