The phrase "if necessary based on" is grammatically correct and can be used in written English.
It is typically used to indicate that a decision or action will be made or taken depending on a certain condition or circumstance. Example: The doctor will prescribe a higher dosage of medication if necessary based on the results of the patient's blood tests.
Once embedded on a publisher's site, it enables readers to buy ads with as little as 3 clicks – they don't even have to upload the required 125×125 banner as the widget will generate one if necessary based on any text entered.
(Group topics may be duplicated, if necessary based on class size).
Data-driven analysis is based on tracking the status of existing goals as new data about the situation become available, and goal-driven analysis is the basis for the formation of new goals (if necessary) based on the results of data-driven analysis.
The Drosophila annotations were based primarily on previous studies [13], [14], [16] but were amended if necessary based on ortholog alignments.
Additional analyses were performed if necessary, based on physician's judgment.
Respiratory rate was adjusted (if necessary) based on the arterial blood gases in the previous hour.
Finally, a medical practitioner examined all the checklists in order to evaluate and amend them if deemed necessary based on pre-arranged and fixed protocols.
Moreover, if the state's public health commission "deems it necessary based on information gathered during the screening process a quarantine will be required".
Medical Medication recommendations, if necessary, are based on decades of research demonstrating potential benefits.
After the last dose for each cohort, a Safety Review Committee (SRC) evaluated all available data in a blinded manner with the possibility of un-blinding if necessary, and based on this determined the subsequent dose.
Accordingly, policy intervention measures would not be necessary if based on the empirical results from the single equation model.
