TY  - RPRT
TI  - Differential allocation: tests, mechanisms and implications.
AU  - BC Sheldon
PY  - 2000
DO  - 10.1016/s0169-5347(00)01953-4
UR  - https://pubmed.ncbi.nlm.nih.gov/10998516/
ID  - 10998516
ER  -