TY  - RPRT
TI  - Pollen hyposensitization: interval between maintenance injections.
AU  - S S Freedman
AU  - G K Boyd
PY  - 1967
DO  - 10.3109/02770906709104324
UR  - https://pubmed.ncbi.nlm.nih.gov/6079836/
ID  - 6079836
ER  -