@misc{indiciae6ce32012e476, title = {Validity issues in split-mouth trials.}, author = {P P Hujoel and T A DeRouen}, year = {1992}, doi = {10.1111/j.1600-051x.1992.tb01709.x}, url = {https://pubmed.ncbi.nlm.nih.gov/1430289/}, note = {Source identifier: 1430289} }