The phrase "also a previous study" is correct and usable in written English.
It can be used when referencing an earlier research work in addition to other studies or findings being discussed.
Example: "The results of this experiment align with the findings of also a previous study conducted in 2020."
Alternatives: "a prior study" or "an earlier study".
Also, a previous study found that PD-1 inhibition produced some responses in patients with other T cell lymphoid malignancies, though none of those cancers are associated with HTLV-1 infection.
Also a previous study regarding regulatory T-cells in FGID patients did not find any such difference [ 14].
Also, a previous study showed that a non-supportive environment for safer practices contributes to continued needle sharing [ 20].
Also a previous study on ongoing European community interventions against childhood obesity showed fewer interventions in Southern and Eastern Europe, with the exception of Spain [ 22].
And also, a previous study reported that a hippocampus lesion strongly interferes with the long- but not short-trace CTA in rats (Koh et al., 2009).
Also, a previous study has showed that endothelial progenitor cells were inversely correlated with carotid intima-media thicknesse in a middle-aged general population [ 6].
Also fascinating, a previous study published by Phelps and colleagues found the same correlation between amygdala activity and implicit racism, but no correlation whatsoever between amygdala activity and self-reported racial attitudes, arrived at through conscious reflection.
The obtained results show good agreement with the numerical simulation and also with a previous study.
It was detected also in a previous study of urban aerosols collected from a site in Albany, California [28].
Our data also support a previous study demonstrating that IL-21R-/ mice do not show defects in T cell proliferation [8].
This work also disproved a previous study that evaluated this germplasm and suggested a low degree of overall diversity [ 26].
