First, generalizability of our findings is limited because we studied a relatively small sample of patients who are mostly underserved, Hispanic patients of physician trainees from a single public clinic.
For the present paper, solar energy absorbed by the interior is neglected because we study a relatively cold and cloudy week.
In the fields of ecology and evolution (in which we work), faithful replication is typically difficult because we study a diverse array of species in a range of often variable settings.
Possibilities of direct comparisons with previous research regarding validity, are limited by the lack of research in this area and because we study a specific behaviour in a specific environment.
However, because we studied only a single grand rounds series conducted at a single institution, our findings may not be universal and will need to be verified in other venues and specialty areas.
However, because we studied outcomes that develop during an extended period of time, changes in the noise exposure occurring late in the study period would not be expected to be of major importance.
"I've improved, for example, on an academic level, because here we study a little history about the music," she says, "and on a personal level also, my friends above anything else". El Sistema is the brainchild and lifelong spiritual mission of Jose Antonio Abreu, 69, an economist and politician.
However, we cannot conclude this because we only studied a small number of stems.
Because we only studied a short timeframe after injury, it was unclear if later during the course of regeneration, CD34− cells ever transitioned back to CD34+.
