@misc{indiciaeab1fa538e4ed, title = {Attrition--a perplexing clinical problem.}, author = {E L Phillips and A Raiford and V Rutledge and J Burkhardt}, year = {1967}, doi = {10.2466/pr0.1967.20.1.26}, url = {https://pubmed.ncbi.nlm.nih.gov/6037805/}, note = {Source identifier: 6037805} }