Those two point mutations were separated from each other in DNA sequence of petB, which was important from a genetic point of view for the planned experiments (this separation was one of the reasons for selection of H198N over other mutations in cytochrome b that are also known to inactivate the Qo site but are closer to G158W in sequence).
One of the reasons for selection of qualitative method is that "Qualitative methods can be used to explore substantive areas about which little is known or about which much is known to gain novel understandings" (Strauss & Corbin, p. 11).
But since it is almost impossible to prove that an abortion has been carried out for reasons of sex selection, the practice remains widespread.
The reasons of positive selection for some repeat occurrences are still unknown.
The reviewers used eight criteria to assess the validity of the trials findings and provided reasons for selection of the criteria based on design issues specific to adherence enhancing intervention studies [ 22] and the Consort Statement [ 23].
The reasons for selection of SF-36 were that SF-36 is one of the most common instruments in general health survey, its reliability and validity have been established with extensive application [ 16].
A full description of the reasons for selection and characteristics of the instruments is available elsewhere [ 24].
There could be several, not mutually exclusive, reasons for selection of EZH2/Ezh2 overexpression during tumorigenesis.
Identifying the specific driver genes targeted in a particular cancer remains a challenge given the multiple possible reasons for selection of an LOH event.> Additional file 1: Table S1.
Regardless of the reasons for selection bias – gaming, triaging, defacto policies or constraints of the health care system – estimation methods that do not explicitly account for these differences lead to biased estimates of the treatment effect [6 8].
