**The original and generic drugs were categorized only according to their ingredients and contents.
A problem of present study could be residual confounding since type of heat waves (i.e., intensity, duration and seasonality) was categorized only in two and three categories, respectively.
8 In a previous TCR report on childhood cancer incidence, childhood cancers were categorized only according to the 12 main ICCC groups and were not categorized further into the 47 subgroups.
For fathers and other household members, work status was categorized only into agricultural work and nonagricultural work; maternal work status was also collapsed into these two categories for some analyses.
Six BRCA1 UV carriers and six BRCA2 UV carriers with a possible splice variant or in-frame deletion were categorized only by allele frequency since Polyphen, the GMS, and the integrated GMS/sequence conservation methods are not applicable to these splice variants and in-frame deletions.
Each journal is categorized in only one field, with the exception of a few journals such as Science, Nature, and PNAS for which each paper is allocated to a specific field based on the categorization of the journals that cite it.
Though Pickering 2013 KEN was a three-arm trial that investigated hand sanitizer and hand washing with soap, we only considered the arm of hand washing with soap in this Cochrane Review, as such it is categorized as a hand washing only intervention.
The variable on "component being revised" was categorized as "only the acetabular component", "only the femoral component" and "both acetabular and femoral components"; two dummy variables were created for this variable for the regression analyses described below.
All subjects were categorized based only on plasma cotinine levels only.
Genes are categorized not only at the gene level but also at the transcript level, definitions of which can be found in Vega (61).
