Panagiotis K. Papasaikas Pantelis G. Bagos Zoi I. Litou Vassilis J. Promponas Stavros J. Hamodrakas PRED-GPCR: GPCR recognition and family classification server. 380-382 2004 32 Nucleic Acids Research Web-Server-Issue db/journals/nar/nar32.html#PapasaikasBLPH04 http://dx.doi.org/10.1093/nar/gkh431