Abstract

References
1.
Lewis
, Heart , 1929 , xv , 7 .
2.
Lewis
Landis
, 1930 , Heart , xv , 151 .
3.
Kuntz
, “The Autonomic Nervous System ,” 1929 .
4.
Adson
Brown
, Surg., Gyn. and Obst. , 1929 , xlviii , 577 .
5.
Pickering
G. W.
: Personal communications.
