Abstract
References
1.
Romberg
E. C.
White
P. D.
, “Congenital Heart Block,”
Boston M. & S. J. , 1924 , 190 , 591 .
2.
D'Espine
Cottin
, Bulletin de l'Acad. de Méd. , 1915 , lxxiv , 292 .
3.
Keith
A.
, Lancet , 1909 (ii), 519 .
4.
Wilson
J. C.
Grant
R. T.
, Heart , 1926 , xii , 295 .
5.
Lewis
T.
, “Mechanism and Graphic Registration of the Heart Beat,”
1925 .