TY  - RPRT
TI  - NIH discovers who counts as 'essential'.
AU  - A Appel
AU  - C Macilwain
PY  - 1995
DO  - 10.1038/378325b0
UR  - https://pubmed.ncbi.nlm.nih.gov/7477357/
ID  - 7477357
ER  -