TY  - RPRT
TI  - Within-subject exposure dependency in case-crossover studies.
AU  - S K Vines
AU  - C P Farrington
PY  - 2001
DO  - 10.1002/sim.960
UR  - https://pubmed.ncbi.nlm.nih.gov/11590631/
ID  - 11590631
ER  -