By root I mean the jurisprudential source, by branch I mean the ultimate outcropping of the famous abortion rights case, Roe v. Wade. Commentary on human rights and cases that preceded and followed Roe v. Wade.
John T. Noonan Jr.,
The Root and Branch of Roe v. Wade,
63 Neb. L. Rev.
Available at: http://digitalcommons.unl.edu/nlr/vol63/iss4/4