Abstract
References
1.
Maratka
Z
. (1961 ) Gastroenterology
40 , 854 .
2.
Maratka
Z
Nedbal
J
. (1964 ) Gut
5 , 214 .
3.
Maratka
Z
Nedbal
J
Chytilová
D
. (1965 ) Acta gastro-ent. belg.
28 , 416 .
4.
Maratka
Z
Niederle
B
Knobloch
J
. (1964 ) Gastroenterologica, Basel
102 , 254 .