óll ANALES DE LA 



17. — Einthoven, W. : The different forms of the human electro- 

 cardiogram and their signijication. Laiicet, I, 853, 1912. 



18. — Pardee H. P». : Form of the Electrocardiograin. J. A. M. A., 

 62, 1311, 11)14. 



19.-Caríer E. P., Rieliter C. P. and Grcene C. H. : A graphic 

 apJicaiion of the principie of the equilateral friaitgle for 

 determining tha direction of the- electrical axis of the Heart 

 iii the Ilíiiiiün electrocardiograni. Ihill Johns Ilopkins Hosp., 

 XXX, 162, 1919. 



20. — Le^\^s Thoinas: The niecJianism and graphic registration of 

 the Heart Beat, Xew York, 1920. 



21.— Ne.üiof fc'elian: Clinical Cardiologij, New York, 1917. 



22. — L.ewis Tilomas: Clinical Electrocardiogrophy, New Y''ork, 1919. 

 2nd. edition. 



23. — Cárter E. P., Dienaide F. lí. : On certains variations in the 

 forní of the lluinan electrocardiograni. John Hookins IIosp. 

 Bull XXXII, 209, 1921. 



24. — Cárter E. P. and Greene Cari H. : The electrocardiogram and 

 veniricidar preponderance. Arch. Int. Med., XXIV, 638, 1919. 



25. — Dienaide F. II.: The deiennination and significance of the 

 electrical axis of the Human heart. Arch. Int. Med., XXVII, 

 558, 1921. 



26.- — Fahr George: Sanie fundamentáis priuciples of electrocar- 

 diographij. Arch. Int. Med., XXVII, 126^ 1921. 



27. — Fahr George: An anahjsis of the sprcad of the exitation 

 ivave in the hunuDí veiitricle. Arch. Int. Med., XXV, 146, 

 1920. 



28. — Bisliop L. F. : The pathologic physiologg of the Heart as 

 revealed htj the polygraph and electrocardiograph, Trans. 

 Am. Med. Ass., 1917, pp. 143-147.1 



29. — Pardee H. E. B. : An error arising in the aplication of the 

 electrodes. Arch. Int. Med., XX, 161, 1917. , 



30. — Pardee H. E. B. : Concerning the electrodes used in electro- 

 cardiograph ij. Am. J. of Phijsiol., 44, I, Aug. 1917. 



31. — Felberbaun, David : A simplified tecnich of apphjing the elec- 

 trodes in flectrocardiogravhg. Journal Lal). Clinical Med. 

 IV, No. 8, 1919. 



32. — Mej-er, S. de: Sur Vinterpretation des phases terminales de 

 r electrocardiograme. Arch. Int. de Phijsiologie, XVII, 1, 1921. 



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