The unborn as constitutional 'persons'

In the Spring 2010 Issues in Law & Medicine, Gregory J. Roden, J.D., a Minnesota attorney, argues that unborn human beings are protected as "persons" under the 14th and 5th Amendments of the U.S. Constitution. The Supreme Court explicitly denied this point in its Roe v. Wade decision that legalized abortion on demand, but Roden argues that the Court was (and is) mistaken. You can read the lengthy analysis here.