Abstract
References
1.
Hukuhara
T
Kotani
S
Sato
G
(1961 ) Jap. J. Physiol . 11 , 635
2.
Jones
D S
(1942 ) Anat. Rec . 82 , 185
3.
Kuntz
A
(1952 ) J. comp. Neurol . 96 , 345
4.
Smith
B
(1967 ) Gut
8 , 308