Seton Hall University and Hackensack University Health Network have joined forces to launch the state’s only private medical school. Officials with both organizations, as well as state officials, said the new school would increase the number of doctors in the state and help redevelop the former Hoffman-La Roche campus in Clifton and Nutley.

But restraints on the number of medical residences in the state may limit the number of doctors who can continue their training in New Jersey beyond medical school.