共 17 条
[1]
BURN GP, 1953, BRIT MED J, V28, P697
[2]
EHRLEN I., 1948, FARM REVY, V47, P242
[3]
ENGEL A, 1950, LANCET 0923, P387
[5]
HOKFELT B, UNPUB
[6]
HOLTZ P, 1947, ARCH EXP PATHOL PH, V204, P228, DOI DOI 10.1007/BF00738347
[8]
MOULTON R, 1955, LANCET 0702, P16