A cohort study was conducted to investigate the relation between cancer incidence and
occupational exposure to ionizing radiation. Records containing dose information from 1951 …

Background: Medical workers can be exposed to low-dose ionizing radiation from various
sources. The potential cancer risks associated with ionizing radiation exposure have been …

OBJECTIVE: To detect unsuspected associations between workplace situations and specific
causes of death in Canada. METHODS: An occupational surveillance system was …

We compared two methods of ascertaining mortality in a historical prospective mortality
study. Computerized Record Linkage (CRL) with the centralized historical Canadian …

A bstract Objective: To describe doses of ionizing radiation and their possible associations
with mortality rates and cancer incidence among Canadian dental workers. Methods: The …

The skill of a human who searches large files of personal records depends much on prior
knowledge of how the names vary in successive documents pertaining to the same …

C anada's health care system is best described as an interlocking set of 10 provincial and 2
territorial health insurance schemes. Each is universal and publicly funded. As part of the …

Machines have difficulty when using people's names to link medical and other records
pertaining to the same individuals because of nicknames, ethnic synonyms, truncations …

Automated methods for linking records pertaining to the same individuals have in the past
made only crude use of the name information. A perceptive filing clerk is more sophisticated …

As we move into the 21st century the acquisition, generation, distribution, and application of
statistical knowledge in a timely fashion will become more important. Required are …