Sequence of an intestinal cDNA encoding human gastric inhibitory polypeptide precursor. - Takeda,J.; Seino,Y.; Tanaka,K.; Fukumoto,H.; Kayano,T.; Takahashi,H.; Mitani,T.; Kurono,M.; Suzuki,T.; Tobe,T. (Proc Natl Acad Sci USA, 1987)