@article{doi:10.1001/archinte.1961.03620100001001, author = {Ebert RV}, title = {THe evaluation of therapy in chronic illness}, journal = {Archives of Internal Medicine}, volume = {108}, number = {4}, pages = {509-511}, year = {1961}, doi = {10.1001/archinte.1961.03620100001001}, URL = { + http://dx.doi.org/10.1001/archinte.1961.03620100001001}, eprint = {/data/Journals/INTEMED/15401/archinte_108_4_001.pdf} }