TY  - RPRT
TI  - Specialisation, stratification, and research.
AU  - H HIMSWORTH
PY  - 1952
DO  - 10.1016/s0140-6736(52)91232-4
UR  - https://pubmed.ncbi.nlm.nih.gov/12991565/
ID  - 12991565
ER  -