'corollary issue' is correct and usable in written English.
It is used to refer to an ancillary problem that is related to a primary problem. For example, "The primary issue of air pollution has led to a number of corollary issues, such as rising levels of respiratory illness."
But recent performances have raised a corollary issue: even if Sarri is given time, there are no guarantees he will be a success.
The chief problem there concerned a corollary issue — a number of Negro teachers had been fired as a result of the consolidation of the schools.
A corollary issue with regard to management-fee-income is team salary.
As a corollary issue, an agreement needs to be reached (and memorialized) as to which investment opportunities a team member must offer to the underlying fund(s) for consideration and which investment opportunities (if any) may be pursued by such individual outside of the fund.
And while food is by no means at the center of the Black Lives Matter movement, it could emerge as an important corollary issue in the months and years to come.
A corollary issue is the relative contribution of each of the two signalling pathways to MMP-1 induction and the possible interaction between the two.
The corollary issues of distribution, verification, and enforcement, although difficult in principle, were simplified in the near term by the size of our datasets.
The corollary issues of distribution, verification, and enforcement, although difficult in principle, are simplified in the near term by the size of our datasets.
Although some radical factions continued to address corollary issues, NAWSA's new approach focused the group's energies exclusively on recruiting new members and winning the vote for women.
The corollary issues of distribution, verification, and enforcement, although difficult in principle, are simplified in the near term by the size of our datasets; they are simply too large to download over the Internet.
The lawmakers say the racial imbalance with which stop-and-frisk is applied has a corollary effect: Many white legislators have remained silent on the issue, or have supported the police, revealing a racial gap over attitudes toward the practice.
