The phrase "also been underlined" is correct and usable in written English.
It can be used when referring to text that has been emphasized or highlighted in a document or piece of writing.
Example: "In the report, the key findings have also been underlined to draw attention to their importance."
Alternatives: "additionally highlighted" or "further emphasized".
The crucial role of the latter in the process of innovation and transmission of tacit knowledge has also been underlined by streams of literature (Storper and Venables 2004), mentioning that communication technologies could not fully replace these contacts as an essential phase to experiment and develop local networks of interactions.
The importance of teacher support has also been underlined in longitudinal studies [ 17, 18].
The role of a receptive context for change to support effective diffusion of research evidence has also been underlined [ 4].
The importance of PHRs and eHealth and its impact especially on patient safety and risk management has also been underlined [ 15, 16].
It should also be underlined that currently, mobility is characterised by a certain unpredictability because mobility practices change rapidly.
The importance of surfactants (high or low molecular weight) that are either intrinsically present or added in the systems is also being underlined.
It should also be underlined that, even though the safety and biocompatibility of vitamin E is well known, this is still an additive with no clinical history in joint replacement components.
However, the limitations of such an approach should also be underlined.
The interplay between additive and multiplicative processes might also be underlined in the study of genome reduction.
PhyloExplorer's educational potential should also be underlined as it might be particularly helpful for preparing undergraduate courses and boosting public awarenes on taxonomy and phylogenetics.
To complete our observations, it can also be underlined that the only two ST4 isolates found in our study were associated with symptoms but in the context of mixed ST infections (associated to ST1 or ST3).
