diff --git a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
index 2baa8d8d21..2772288960 100644
--- a/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
+++ b/en_US.ISO8859-1/articles/contributors/contrib.additional.sgml
@@ -7438,6 +7438,11 @@
 	<email>matutaka@osa.att.ne.jp</email></para>
     </listitem>
 
+    <listitem>
+      <para>Yuichiro AIZAWA
+	<email>yaizawa@mdbl.sfc.keio.ac.jp</email></para>
+    </listitem>
+
     <listitem>
       <para>Yujiro MIYATA
 	<email>miyata@bioele.nuee.nagoya-u.ac.jp</email></para>