Curves that relate the amplitude of the first heart sound to the P-Q interval have been obtained in 13 dogs with complete atrioventricular (AV) heart block. The amplitude was highest at a P-Q interval of approximately 0.05 second, became lowest at a P-Q interval of 0.13 second and continu...
英语圈单词D S E G G B QM P L A T E AN O O D L E SF O R K J F OW N R I C E UX K N I F E P从这里找出单词