Eiji Higurashi Renshi Sawada Tadatomo Suga Optical Microsensors Integration Technologies for Biomedical Applications. 231-238 2009 92-C IEICE Transactions 2 http://search.ieice.org/bin/summary.php?id=e92-c_2_231&category=C&year=2009&lang=E&abst= db/journals/ieicet/ieicet92c.html#HigurashiSS09