title: A comparative study in the cat of the respiratory effects of morphine injected intravenously and into the cerebrospinal fluid.
mesh_terms: D000818:Animals; D002245:Carbon Dioxide / Q000502:physiology; D002415:Cats; D003864:Depression, Chemical; D007267:Injections; D007275:Injections, Intravenous; D009020:Morphine / Q000134:cerebrospinal fluid / Q000494:pharmacology*; D012119:Respiration / Q000187:drug effects*; D012131:Respiratory Insufficiency / Q000139:chemically induced; D013238:Stereotaxic Techniques; D013346:Subarachnoid Space
chemical_list: D002245:Carbon Dioxide; D009020:Morphine