ObjectiveTo characterize breast and cervical cancer screening rates in selected underserved populations and to compare the rates with objectives for the year 2000. DesignSix random-sample surveys were conducted in underserved populations between 1991 and 1993. Two of the surveys were random-digit-dial telephone surveys; four were conducted using in-person interviews. SettingsThe studies were conducted in the… Continue reading Breast and Cervical Cancer Screening Among Underserved Women: Baseline Survey Results From Six States

This paper has the dual purpose of introducing some new algorithms for emission and transmission tomography and proving mathematically that these algorithms and related antecedent algorithms converge. Like the EM algorithms for positron, single-photon, and transmission tomography, the algorithms provide maximum likelihood estimates of pixel concentration or linear attenuation parameters. One particular innovation we discuss… Continue reading A Theoretical Study of Some Maximum Likelihood Algorithms for Emission and Transmission Tomography