The phrase "although previous studies indicated" is correct and usable in written English.
It can be used to introduce a contrast or exception to findings or conclusions drawn from earlier research.
Example: "Although previous studies indicated a strong correlation between diet and health, recent research suggests a more complex relationship."
Alternatives: "despite earlier studies suggesting" or "even though past research indicated".
Sampling was limited to 48 hours after surgery although previous studies indicated ongoing damage for more than five days.
Although previous studies indicated that the disease was mild and self-limiting, recent studies have revealed its ability to cause more severe complications than previously expected [ 9, 10].
Although previous studies indicated that miR-133a was related to myogenesis, the signaling pathways regulated by miR-133 were still not very clear.
Although previous studies indicated eSSRs are prone to accumulate in gene-rich regions and affect the coverage of linkage maps (Pinto et al. 2006), in this study, mapped eSSRs were interspersed along the whole linkage map, mostly between the gSSRs, and no obvious clusters were observed.
Although previous studies indicated that patients with various lymphoid malignancies mobilising large numbers of CD34+ cells ('super mobilisers') enjoy improved survival following autologous stem cell transplantation (Stockerl-Goldstein et al, 2000; Gordan et al, 2003; Bolwell et al, 2007; Hiwase et al, 2008), such data are lacking so far for myeloma patients.
Although previous studies indicated interhemispheric functional connectivity between the fusiform gyrus and the amygdala (Irwin et al., 2004; Davies-Thompson and Andrews, 2012), this interhemispheric visual and limbic coupling has been found during resting state and during the presentation of faces versus objects or places.
Although previous studies indicate that perceived similarity can influence perceptions of source credibility, less is known about the impact of ethnic identity on these perceptions in social media environments.
Although previous studies indicate an enhanced interaction between GHR and Jak2 upon GH stimulation [36], the conditions differ in timing and expression levels, indicating that the GHR-Jak2 interaction is dynamic during GH stimulation.
Although previous studies indicate a role for mDia1 and Arp2/3 in mitosis [ 30 32], their role in assembling the mitotic cortex remains unclear.
Although previous studies indicate that SSI causes suffering, and that PJI after hip replacement negatively affects outcomes, no research has characterised the impact of PJI and treatment on patients who have undergone hip replacement.
Although, previous studies indicate that due to differences in discriminatory power between the RT-PCR and microarray methods, the confirmation rate can vary [ 54], we were able to confirm expression change for all these genes.
