The phrase "frequently documented" is correct and usable in written English.
You can use it when you want to refer to something that has been recorded or written down in multiple sources. Example sentence: The endangered species of this region has been frequently documented over the last few years.
Occurrence of bona fide microplastic particles in soil, however, has not been frequently documented.
Cationic stabilization of proteins has been far less frequently documented than anionic stabilization.
One finding that has been frequently documented is that women tend to report experiencing more incivility at work than their male counterparts.
References to foods high in sugar, specifically related to oral health, were frequently documented in the magazines constituting 73.6% of all food references.
In research, one finding that has been frequently documented is that women tend to report experiencing more incivility at work than their male counterparts.
Postpartum depressive symptoms (PDS) and acute stress reactions (ASR) after childbirth are frequently documented in mothers, but research is scarce in fathers.
Plantarflexor tightness due to muscle degenerations has been frequently documented in children with spastic cerebral palsy but the contractile behavior of muscles during ambulation is largely unclear.
Histologic placental and/or intra-amniotic inflammation is frequently documented during ascending intra-uterine infections in patients with preterm labor and intact membranes.
Objectives. Barriers to communication about complementary/alternative medicine (CAM) between parents and pediatricians are frequently documented, yet the scope of these barriers remains poorly understood.
One frequently documented cause of local pollution is defective casing in the portion of an active gas well that passes through an aquifer, allowing production gas and liquids to pass into the water supply.
The debonding failure modes shown in Fig. 1, especially concrete cover separation, have been frequently documented.
