TY  - RPRT
TI  - [Use of suppositories for rectal immunization].
AU  - L M Bershteĭn
AU  - B N Sofronov
AU  - T G Shemerovskaia
PY  - 1981
UR  - https://pubmed.ncbi.nlm.nih.gov/7234248/
ID  - 7234248
ER  -