For all interrogated datasets, cases linked by NHS number were verified using the other linkage parameters (date of birth, sex, etc).
While in theory this occurs for acute prescriptions, allowing linkage by date, only the original indication for repeated treatment is required to be entered[ 3].
The best-characterized linkages to date utilize ubiquitin lysine 48 (K48) and lysine 63 (K63).
Linkage studies dating back to 1997 showed a modest association with this region of chromosome 20 [ 26, 27], when whole genome data was not available.
Even with successful linkage of dates, because many practices have fairly few cancer patients, this prevents assessment of practice performance on the measure.
Linkage variables were date of birth, date of death, place of residence at time of death, occupation, marital status, and duration of marriage, if married.
Core variables extracted included the de-identified statistical linkage keys, gender, date of birth, postcode of residence, sample type, date of request, date of result, and test result.
To our knowledge, this map is the densest genetic linkage map to date for sesame.
Here, we present the most dense, comprehensive linkage map to date using genotyping-by-sequencing (GBS) technology.
Using various grass plant-derived cDNAs as probes, approximately 2,000 RFLP markers have been mapped on linkage maps to date.
