@article{doi:10.1001/archinte.1969.00300160130049, title = {PRevalence of selected impairments, united states, july 1963-june 1965.}, journal = {Archives of Internal Medicine}, volume = {123}, number = {6}, pages = {740}, year = {1969}, doi = {10.1001/archinte.1969.00300160130049}, URL = { + http://dx.doi.org/10.1001/archinte.1969.00300160130049}, eprint = {/data/Journals/INTEMED/15741/archinte_123_6_049.pdf} }