共 3 条
[1]
Contributions to the experimental study of epidemiology - The effect of vaccination on herd mortality
[J].
JOURNAL OF HYGIENE,
1931, 31 (02)
:257-289
[2]
Pijper A, 1930, BRIT J EXP PATHOL, V11, P112
[3]
Topley WWC, 1929, LANCET, V1, P1337