Pneumograph recording using a cotton-wick probe.
D000628:Aminophylline / Q000494:pharmacology; D000818:Animals; D001463:Barbiturates / Q000494:pharmacology; D006325:Heart Atria / Q000187:drug effects; D008722:Methods; D011817:Rabbits; D012119:Respiration / Q000187:drug effects; D013147:Spirometry / Q000295:instrumentation*; D013440:Sulfides / Q000494:pharmacology; D014159:Transducers
D001463:Barbiturates; D013440:Sulfides; D000628:Aminophylline