The phrase "has been previously discussed" is correct and can be used in written English.
It is typically used to refer to a topic that has already been talked about or mentioned in a previous conversation or piece of writing. Example: As mentioned in the previous meeting minutes, the issue of employee attendance has been previously discussed, and a plan of action has been implemented to improve it.
Within the context of a Markov chain model we pursued two improvements by reexamining assumptions 1 and 2. Assumption 1 has been previously discussed in the supplementary information of GPNP [2], thus we keep our discussion brief.
Luo made the accusations while Mr. Liu was traveling in Russia with Wang Qishan, the new anti-corruption czar THE CRACKDOWN ON CORRUPTION has been previously discussed in this column.
Again this is an option that has been previously discussed and rejected.
Moreover, the maximum likelihood (ML) method for estimating the covariance matrix based on the Kronecker product has been previously discussed in [22, 23].
However, a large value of ε implies a non-appropriate time evolution of the infected population as it has been previously discussed in relation to Figure 5.
It has been previously discussed [23] that the control protein may visualise enhanced permeability and retention (EPR) [40] effects while the AnxA5 tracer uptake may be due to both specifically bound tracer as well as EPR contributions.
The interaction of aluminum ions with montmorillonite has been previously discussed by Bruggenwert et al. [12] who also provide a concise overview on the interactions of aluminum and clay minerals.
The formation of gold silicides is a strong indication of the mixing between silicon and gold and has been previously discussed in the literature in the context of xenon and krypton irradiation [14, 15].
The family has been previously discussed in this review series under the Apiaceae [14], but we further highlight herein some species that were not included in the previous review and provide a more in-depth discussion of this family.
Beyond the special cases such as arthrofibrosis, heterothopic ossifications, and reflex sympathetic dystrophy whose treatment has been previously discussed, general treatment consists of the following options: manipulation, artrolysis (open or arthroscopic), and revision surgery.
This filtering may be achieved either by ranking as has been previously discussed, clustering of results based on pathway similarity or overlap [68], allowing the user to exclude pathways based on the presence or absence of specific intermediates that the user chooses to avoid, or some mixture of all of these.
