共 10 条
[2]
BERSTAD A, 1970, SCAND J GASTROENTERO, V5, P343
[3]
BERSTAD A, 1969, SCAND J GASTROENTERO, V4, P617
[4]
GROSSMAN MI, 1945, GASTROENTEROLOGY, V4, P347
[5]
GRYBOSKI WA, 1964, AM J DIG DIS, V9, P87
[6]
Hyden S., 1955, KUNGL LANTBRUKSHOGSK, V22, P139
[7]
NAHRWOLD DL, 1967, GASTROENTEROLOGY, V52, P667
[8]
PETERSEN H, 1969, SCAND J GASTROENTERO, V4, P609
[9]
SARLES H, 1958, Arch Mal Appar Dig Mal Nutr, V47, P261
[10]
Snedecor G.W., 1980, STAT METHODS