TY  - RPRT
TI  - Validity issues in split-mouth trials.
AU  - P P Hujoel
AU  - T A DeRouen
PY  - 1992
DO  - 10.1111/j.1600-051x.1992.tb01709.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1430289/
ID  - 1430289
ER  -