The phrase "additionally a previous study" is not entirely correct as it lacks proper punctuation or conjunctions for clarity.
You can use it when you want to introduce information from a previous study that adds to the current discussion, but it should be rephrased for better readability.
Example: "Additionally, a previous study found that..."
Alternatives: "Furthermore, an earlier study" or "In addition, a prior study".
Additionally, a previous study has shown that bracket prescription and especially bracket positioning can have a considerable effect on the displacement of the root apex [9].
Additionally, a previous study has shown that migraineurs with aura tend to exhibit even less decline over time than migraineurs overall [27].
Additionally, a previous study has reported that MGMT hypermethylation was associated with transitions in IDH1 and RAS[ 20].
Additionally, a previous study showed that smoking was a major factor for tooth loss in postmenopausal women [ 33, 36].
Additionally, a previous study has indicated an association between Stat3 and Tfap2c loci (Chen et al., 2008).
Additionally, a previous study found a positive correlation between the circulating prM antibody level and disease severity (Rai et al. 2008).
Additionally, in a previous study, the ICT-TB test performed better when the CD4 cell count was more than 200 cells/μL.
Additionally, in a previous study conducted by our group, we observed an increase in the activity of caspase-3 after 45 min of ischemia, which was associated with a higher number of apoptotic cells [ 21]. eNOS activity mainly observed in the cytoplasm of the endothelial layer of the lung tissue, with a similar distribution among all groups.
Additionally, we indicated in a previous study the possibility of a correlation between in vivo and semi-static in vitro findings in respect to microbial adhesion on surfaces with different surface properties [25].
Additionally, a previous genotype study in the U.S. showed that SCC mec II was the genotype that was most predictive of high vancomycin MIC isolates [ 10].
Additionally, a previous experimental study described significant extracellular matrix disorganization (degenerative changes and change in the collagen fibril diameter pattern) in the CdCL of CrCL-deficient dogs 2 years after ligament transection [ 22].
