The phrase "additional studies" refers to extra research or investigation that is done in addition to what has already been studied or researched. Full definition
Results are reported in light of possible implications for teacher education, including specific suggestions for additional study of online learning spaces. (citejournal.org)
We think that it is required our findings to be tested with additional studies in the future. (scirp.org)
Since then I have been inspired to continue my learning to provide the best support I can with additional studies in lactation and natural medicine. (rebirthwellness.ca)