"extended studies" is correct and usable in written English.
You can use it when referring to a period of extended or more in-depth learning or research. For example, "She is taking a break from her extended studies in Spanish history."
So far, the authors would not share research-related data or materials because we will do extended studies.
During the last half a century, extended studies have been carried out on transition metal nitrides (MNx).
Given the proposed role of SPANX genes in spermatogenesis, we have extended studies to SPANX-N gene evolution, variation, regulation of expression, and intra-sperm localization.
Thus, they allow extended studies of chemical interactions on cellular systems at physiologically-relevant exposure levels.
No doubt, extended studies with larger patient sample are necessary to support and prove these preliminary results.
Knight et al. (abstract 1321) extended studies showing that hypothalamic resveratrol suppressed hepatic glucose production and increased insulin sensitivity by central SIRT1 activation.
Although the great susceptibility of BVDV, the surrogate of HCV, against biocides has not initiated extended studies, preliminary data suggest that this enveloped virus has a comparable if not a lower stability than VACV to biocides [ 29, 30].
We then extended studies of AhR activity to analyses of sera from a human population exposed to HAHs in the diet and analyses of commercially available human sera pools.
Finally, whereas our hypothesis of the role of intracellular ANG II in diabetic cardiomyopathy is strengthened by the data presented, extended studies will be required to unequivocally prove it.
According to our previous in vitro results [ 15] and clinically extended studies [ 41, 42], it was suggested that patient's tumors with p38 MAPK activation and which are Bcl-2 positive reflected a chemoresistant phenotype.
This would indicate that the interactions between probiotic and pathogen are strain related; therefore, extended studies including other probiotics are required.
