BIBLIOGRAFIA
1. Hurtado, A.: Animals in high altitudes: resident man. Handbook of Physiology. Adaptation to the environment. IV: 843-860, 1964.
2. Arias-Stella, J. and Saldaña, M.: The muscular pulmonary arteries in people native to high altitudes, Med. Thorac. 19: 484-493, 1962.
3. Rotta, A., Cánepa, A. Hurtado, A., Velásquez, T. and Chavez, R.: Pulmonary circulation at sea level and high altitudes. J. Appl. Physiol. 9: 328-336, 1956.
4. Sime, F. Banchero, N., Peñaloza, D. Gamboa, R. Cruz, J. and Marticorena E.: Pulmonary hypertension in children born and living at high altitudes. Am. J. Cardiol. 11: 143-149 1963.
5. Peñaloza, D. Sime, F. Banchero, N., Gamboa, R., Cruz, J. and Marticorena, E.: Pulmonary hypertension in healthy men born and living at high altitudes. Am. J. Cardiol. 11: 150-157, 1963.
6. Rotta, A.: Physiologic conditions of the heart in the natives of high altitudes. Am. Heart J. 33: 669-676, 1947.
7. Arias-Stella, J. and Recavarren, S.: Right ventricular hypertrophy in natives children living at high altitudes. Am. J. Pathol. 41: 5564, 1962.
8. Marticorena, E., Peñaloza, D., Severino, J. y Hellriegel, K.: Incidencia de la persistencia del conducto arterioso en las grandes alturas. Memorias del IV Congreso Mundial de Cardiología. México I-A: 155-162, 1963.
9. Dyer, J. Tapia, F. Gonzales, N. Severino, J. Marticorena, E. Ruiz, L. Hellriegel, K. and Peñaloza, D.: Patent ductus arteriosus at high altitudes. Clinical studies. U. S. PHS. Research Grant HE06910. Pág. 1-11, 1965.
10. Cayler, J. C. Rudolph, A. M. and Nadas, A. S.: Systemic blood flow in infants and children. Pediat. Cardiol. (Nadas A. S.): 779, 1963.
11. Gorlin, R.: Shunt flows and valve areas. Chapter IV. Intravascular catheterization. (Zimmerman H. A.), 1959.
12. Denolin, H.: Contribution a l'etude de la circulation pulmonaire en clinique. Acta Cardiol. Supp. X, Vol. 16, 1961.
13. Snedecor, G.: Statistical methods. The Iowa State College Press. Fifth Edition, 1957.
14. Banchero, N., Sime, F. Peñaloza, D., Gamboa, R. Cruz, J. y Marticorena, E.: Hipertensión pulmonar en el niño nativo de las grandes alturas. Memorias del IV Congreso Nacional de Cardiología. México I-B: 157-161, 1963.
15. Ch5vez, I., Espino-Vela, J., Limon, R. y Dorbecker, N.: La persistencia del conducto arterial. Estudio de 200 casos. Arch. Inst. Cardiol. México. 23: 687-755, 1953.
16. Rudolph, A. M. and Nadas, A. S.: The pulmonary circulation and congenital heart disease (H). New England J. Med. 267: 1022-1029 1962.
17. Adams, F. H. and Lind, J.: Physiologic studies on the cardiovascular status of normal newborn infants. With special reference to the ductus arteriosus. 19:431-437, 1957.
18. Everett, N. B. and Johnson, R. J.: A physiological and anatomical study of the closure of the ductus arteriosus in the dog. Anat. Rec. 110: 103, 1951.
19. Reis, R. L. and Anderson, R. P.: Constriction of the ductus arteriosus. Experimental observations in the newborn lamb. J. Surg. Res. 4: 356, 1964.
20. Assali, N. S., Morris, J. A. Smith, R. W. and Manson, W.: Studies on ductus arteriosus circulation. Circulation Res. 13: 478-489, 1963.
21. Born, G. V. R., Dawes, G. S., Mott, J. C. and Rennick, B. R.: The constriction of the ductus arteriosus caused by oxygen and by asphixia in newborn lambs. Am. J. Physiol. 132: 304, 1956.
22. Mitchell, S. C.: Ductus arteriosus in neonatal period. J. Pediat. 51: 12-17, 1957.
23. Eldridge, F. L. and Hultgren, H. N.: The physiologic closure of the ductus arteriosus in the newborn infant. J. Clin. Invest. 34: 987, 1955.
24. Rudolph, A. M., Drorbaugh, J. E., Auld, P. A. M., Rudolph, A. J., Nadas A. S., Smith, C. A., and Hubbell, J. P.: Studies on the circulation in tile neonatal period: circulation in respiratory distress syndrome. Pediat. 27: 551-566, 1961.
25. Kennedy, A. J.: A new concept of the cause of patency of the ductus arteriosus. Am. J. Med. Soc. 204: 570, 1942.
26. James, L. S. and Rowe, R. D.: The pattern of response of pulmonary and systemic arterial pressure in newborn and older infants to short periods of hypoxia. J. Pediat. 51: 5-11, 1957.
27. Assali, N. S., Sehgal, N. and Morable, S.: Pulmonary and ductus arteriosus circulation in the fetal lamb before and after birth. Am. J. Physiol. 202:536, 1962.
28. Sime, F., Banchero, N., Cruz, J., Marticorena, E. and Peñaloza, D.: The effect of oxygen, acetylcholine and acute hypoxia in the pulmonary circulation of high altitude subjects. U. S. PHS. Research Grant HE-06910. PA9. 1-8, 1965.
29. Gross, R. E. and Longino, L. A.: The patent ductus arteriosus, Observations from 412 surgically treated cases. Circulation 3: 125-137, 1951.
30. Hay, J. D. and Ward. 0. C.: Patent ductus arteriosus. A review of 108 cases treated surgically. Arch. Dis. Child. 31: 279-287, 1956.
31. Limon, R. Bouchard, F. Rubio-Alvarez, V. Cahen, P. and Novel, S.: Cateterismo en conducto arterioso atipico. Arch. Inst. Cardiol. Médico. 20: 147-181, 1950.
32. Hultgren, H. Selzer, A. Purdy, A. Holman, E. and Gerbode, F.: The syndrome of patent ductus arteriosus with pulmonary hypertension. Circulation 8: 15-35, 1953.
33. Rudolph, A. M. Mayer, F. E. Nadas, A. S. and Gross, R. E.: Patent ductus arteriosus. A clinical and hemodynamic study of 23 patients in the first year of life. Pediat. 22: 892-904, 1958.
34. Krovetz, L. J. Lester, R. G_ and, Warden, H. E.: The diagnosis of patent ductus arteriosus in infancy. Dis. Chest. 42: 241-250, 1962.
35. Marshall, H. N. Swam, H. J. C. and Wood, E. H.: Effect of breathing oxygen on pulmonary vascular resistance in patients with acyanotic congenital heart disease. Fed. Proc. 16: 84, 1957.
36. Beck, W., Swam, H. J. C., Burchell, H. B. and Kirklin, J. W.: Pulmonary vascular resistance after repair of atrial septal defects in patients with pulmonary hypertension. Circulation 22: 938-946, 1960.
37. Buchell, H. B_ Swan, H. J. C. and Wood, E. H.: Demonstration of differential effects on pulmonary and systemic arterial pressure by variation in oxygen content of inspired air in patients with patent ductus arteriosus and pulmonary hypertension. Circulation 8: 681, 1953.
38. Chávez, I., Cabrera, E. y Limon, R.: La persistencia del conducto arterioso complicada de hipertensi6n pulmonar. Arch. Inst. Cardiol. México 23: 131, 1953.
39. Yu, P. N. Lovejoy, F. W. Jr., Joos, H. A. Nye, R. E. Jr. and Beatty, D. C. Studies of pulmonary hypertension. V. The syndrome of patent ductus arteriosus with marked pulmonary hypertension. Am. Heart J. 48: 544, 1954.
40. Ellis, H. F. Jr., Kirklin, J. W. Callahan, J. A. and Wood, E. H. Patent ductus arteriosus with pulmonary hypertension and analysis cases treated surgically. J. Thorac. Surg. 31: 268-285, 1956.
