"has specifically indicated" is correct and usable in written English.
You can use it when you want to emphasize the fact that something has been made explicit. For example, "The professor has specifically indicated that attendance is mandatory."
Our results indicate novel pathways through which metals may elicit specific PM-related responses and help explain previous studies that have specifically indicated a role of metals in promoting PM effects (Arisawa et al. 2001; Magari et al. 2002; Messner et al. 2009; Park et al. 2008).
It said they had "specifically indicated" that they were not lobbyists or consultants, and had no financial interest in anything they brought before the agency.
Thus, in order to analyze differences on response inhibition in the relevant musician group, the performance of musicians who had specifically indicated that they were a part of an orchestra or band was compared to those without musical training on the stop signal task.
The Missing Women's Task Force -- made up of officials from the sheriff's office, Chillicothe Police Department, FBI and Ohio's Bureau of Criminal Investigation -- has not specifically indicated why it wanted to talk to Moore.
The patients had to specifically indicate that they wanted to have their scores linked to their clinicians' ratings, rather than having to indicate if they did not want to have their scores linked.
The phylogenetic trees also indicate that Acsl1 has specifically duplicated in the teleost lineage.
RICS has specifically denied this.
Liddell has specifically denied these charges.
A special case to this has been sipuleucel-T, which is specifically indicated for men with mCRPC who have minimal to no symptoms.
In this study, we clearly demonstrate that, while Nkx2.5 and Nkx2.7 play redundant roles in the differentiation of cardiomyocytes, Nkx2.7 has a more critical function, specifically indicated by the gain-of-function and loss-of-function experiments where Nkx2.7 is observed to regulate the expressions of tbx5 and tbx20 through the heart tube stage.
35 Various approaches have been studied, including products specifically indicated for dry mouth, such as artificial saliva and saliva-stimulating drugs (pilocarpine), but the outcomes have not been encouraging.
