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2. Effects of prostacyclin (PGI2) on the smooth muscles of the guinea-pig stomach;Ishizawa;Arhc. int. Pharmacodyn. Ther.,1981
3. Contractile effects of PGE2 and PGF2α on mechanical and electrical activities in longitudinal and circular muscles of the guinea-pig colon;Ishizawa;Prostaglandins,1983
4. Effects of prostaglandin E1 and E2 on the mechanical activity of isolated circular and longitudinal muscle strips of guinea-pig stomach;Milenov;Arch. int. Pharmacodyn. Ther.,1976
5. Biphasic responses of circular muscles to prostaglandin E2 in guinea-pig colon;Ishizawa;Arch. int. Pharmacodyn. Ther.,1988