The phrase "a study has indicated" is correct and usable in written English.
You can use it when referring to findings or conclusions drawn from research or academic studies.
Example: "A study has indicated that regular exercise can significantly improve mental health."
Alternatives: "research has shown" or "findings suggest".
More recently, a study has indicated that warming of the Mediterranean due to climate change is also a contributing factor.
A study has indicated that patient-derived glioblastoma stem cells can be killed by anti-CD133 CART cells both in vitro and in an orthotopic tumor model in vivo (Zhu et al., 2015).
Whereas a study has indicated that men and women are equally affected with charcot osteoarthropathy [ 23].
Recently, a study has indicated nanoparticles synthesised from A.carnosus extract to show potent antimicrobial activity against microbes such as B. subtilis, K. pneumonia, E.coli and P.aeruginosa [ 25].
Moreover, a study has indicated that the subsequent rupture (n = 14) rate was up to 58%% in ruptured VADAs (n = 24) [ 4].
In case of HCC, a study has indicated that the sMICA serum levels, but not sMICB serum levels, were significantly decreased after transcatheter arterial embolization (TAE) therapy.
Additionally, a previous study has indicated an association between Stat3 and Tfap2c loci (Chen et al., 2008).
A previous study has indicated that the VAS is a valid ratio measure [ 27].
A previous study has indicated that BMI increases when a wider spectrum of animal products are eaten.
A previous study has indicated that βNAC may be cleaved in a caspase-dependent manner during apoptosis [32], however, the functional consequences of this was not examined.
A previous study has indicated that the ΔFHA mutant of CHFR acts as a dominant-negative and can disrupt the checkpoint function of the wild type protein [1].
