Chiba, S Effects of nicotine and dimethylphenylpiperazinium on the S-A node activity of dogs in situ. [electronic resource] - The Tohoku journal of experimental medicine Dec 1969 - 407-9 p. digital Publication Type: Journal Article ISSN: 0040-8727 Standard No.: 10.1620/tjem.99.407 doi Subjects--Topical Terms: AnimalsAtropine--pharmacologyDogsHexamethonium Compounds--pharmacologyNicotine--pharmacologyPiperazines--pharmacologyPropranolol--pharmacologySinoatrial Node--drug effectsTetrodotoxin--pharmacologyTime Factors