A clinical professor can be constituted-of-or-filled-with medicine.
A professor of an university may say that something-is-the-case.
A professor can be constituted-of-or-filled-with international politics.
An associate professor can be constituted-of-or-filled-with neurology.
A professor can be constituted-of-or-filled-with urban planning.
A professor can be constituted-of-or-filled-with international affairs.
Clinical professor can be constituted-of-or-filled-with psychiatry.
An associate professor can be constituted-of-or-filled-with marketing.
An assistant professor can be constituted-of-or-filled-with chemistry.