I don't think "The Alternative Factor" has been referenced in any tie-ins... no, wait, there is one Strange New Worlds
story that features Lazarus.
King Daniel wrote:
One of the Lives of Dax stories is a prequel to "Threshold"
Man I don't remember that at all. Are you sure? Which story?
The Torias Dax story, "Infinity" by Susan Wright, has Torias (Dax's shortest-lived host, killed in an accident 6 months after joining) lose his life testing the same transwarp theory seen in "Threshold," as part of the development of the Excelsior
's transwarp drive in the TOS movie era.