An analysis of portal vein spontaneous contractions.
D000818:Animals; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D007668:Kidney / Q000502:physiology; D008433:Mathematics; D009119:Muscle Contraction; D009130:Muscle, Smooth / Q000502:physiology*; D011169:Portal Vein / Q000502:physiology*; D014655:Vascular Resistance