Often these published patient cohorts are derived from specialty centers.
Studies were of limited methodological quality, with most samples derived from specialty clinics, and most exposures ascertained retrospectively.
We have presented a methodology for deriving a specialty semantic network for the chemical domain directly from the existing UMLS Semantic Network and Metathesaurus, based on a threshold value that regulated the inclusion of new chemical types.
While "certified" specialty derives from the physician's specialty certification, "functional" specialty is determined by the physician's activity-based specialty, which is assigned to each physician based on the combination of OHIP services provided, patient age and sex, and diagnoses that accounts for the highest proportion of the physician's total adjusted billings.
During the year ended December 31 , 2011 approximately 50% of its revenue was derived from manufacturing specialty chemicals for specific customers with 4% of revenues being derived from multi-customer specialty chemicals and 46% from biofuels.
The Specialty Chemicals segment manufactures, markets and distributes specialty chemicals derived from sawdust and other byproducts of the papermaking process in North America, Europe, South America and Asia.
Occupational specialty congruence was derived by comparing preferred functions with the actual functions characterizing a given occupational specialty.
Today, most bulk and specialty chemicals are derived from crude oil.
Relatively few studies have investigated the impact of computerized systems on the reduction of medication errors in oncology; most evidence comes from other specialties or is derived from data about the use of standardized paper prescription forms.
To compensate for this paucity of information, some studies have evaluated the impact for diseases in primary care calling upon modelling data derived from studies in medical specialties 14 16 and/or in hospital settings, 17 18 or from general population surveys.
