TY  - RPRT
TI  - Back to basics.
AU  - S K Leong
PY  - 1999
DO  - 10.1002/(sici)1098-2353(1999)12:6<422::aid-ca4>3.0.co;2-v
UR  - https://pubmed.ncbi.nlm.nih.gov/10545858/
ID  - 10545858
ER  -