Yeondae Kwon Yasumasa Shigemoto Yoshikazu Kuwana Hideaki Sugawara Web API for biology with a workflow navigation system. 11-16 2009 37 Nucleic Acids Research Web-Server-Issue http://dx.doi.org/10.1093/nar/gkp300 db/journals/nar/nar37.html#KwonSKS09