title: Guinea pig ductus arteriosus. 3. Light absorption changes during response to O 2 .
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D002248:Carbon Monoxide / Q000494:pharmacology; D003580:Cytochromes / Q000378:metabolism; D004373:Ductus Arteriosus / Q000187:drug effects / Q000378:metabolism*; D004579:Electron Transport; D006168:Guinea Pigs; D009119:Muscle Contraction; D009130:Muscle, Smooth; D010084:Oxidation-Reduction; D010100:Oxygen / Q000494:pharmacology*; D010775:Photic Stimulation; D013053:Spectrophotometry
chemical_list: D003580:Cytochromes; D002248:Carbon Monoxide; D010100:Oxygen