XIV REFERENCES

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[2]  R. Scammon,et al.  On the time of the post‐natal obliteration of the fetal blood‐passages (foramen ovale, ductus arteriosus, ductus venosus) , 1918 .

[3]  D. M. Palmer,et al.  The lung of a human foetus of 170 mm. C. R. length , 1936 .

[4]  W. J. German,et al.  THE NORMAL BEHAVIOR OF THE PULMONARY BLOOD VESSELS WITH OBSERVATIONS ON THE INTERMITTENCE OF THE FLOW OF BLOOD IN THE ARTERIOLES AND CAPILLARIES , 1934 .

[5]  P. Williams,et al.  Fetal and Neonatal Death , 1950, Pediatrics.

[6]  B. Jager,et al.  An Anatomical Study of the Closure of the Ductus Arteriosus. , 1942, The American journal of pathology.

[7]  A. Huggett.  Fœtal blood‐gas tensions and gas transfusion through the placenta of the goat , 1927, Journal of Physiology.

[8]  J. A. Kennedy,et al.  OBSERVATIONS ON THE PHYSIOLOGICAL REACTIONS OF THE DUCTUS ARTERIOSUS , 1942 .

[9]  E. L. Potter,et al.  Intrauterine Respiration in Relation to Development of the Fetal Lung , 1941 .

[10]  P. Gruenwald.  Surface tension as a factor in the resistance of neonatal lungs to aeration. , 1947, American journal of obstetrics and gynecology.

[11]  H. Kellogg.  STUDIES ON THE FETAL CIRCULATION OF MAMMALS , 1930 .

[12]  E. Merz.  Pathology of the Fetus and the Newborn , 1952 .

[13]  F. Stewart,et al.  An histogenetic study of the respiratory epithelium , 1923 .

[14]  Specielle Physiologie des Embryo , 1885, Glasgow Medical Journal.

[15]  B. M. Patten.  The changes in circulation following birth , 1930 .

[16]  J. A. Kennedy,et al.  Observations on the ductus arteriosus of the guinea pig in relation to its method of closure , 1941 .

[17]  B. M. Patten,et al.  Functional limitations of the foramen ovale in the human foetal heart , 1929 .

[18]  J. Keen.  A note on the closure of the foramen ovale and the post-natal changes of the ventricles in the human heart. , 1942, Journal of anatomy.

[19]  F. F. Snyder,et al.  Fetal respiration in relation to atelectasis and intrauterine pneumonia , 1938 .

[20]  R. F. Goddard,et al.  Newer concepts of infant resuscitation and positive pressure therapy in pediatrics. , 1955, A.M.A. American journal of diseases of children.

[21]  A. Kennedy.  A NEW CONCEPT OF THE CAUSE OF PATENCY OF THE DUCTUS ARTERIOSUS* , 1942 .

[22]  F. F. Snyder,et al.  INTRA-UTERINE RESPIRATORY MOVEMENTS OF THE HUMAN FETUS , 1937 .

[23]  R. B. Cherry,et al.  Studies of respiratory physiology in the newborn infant. I. Observations on normal premature and full-term infants. , 1955, The Journal of clinical investigation.

[24]  A. Ham,et al.  A histological study of the development of the lung with particular reference to the nature of alveoli , 1941 .

[25]  H. Kellogg.  The course of the blood flow through the fetal mammalian heart , 1928 .