The supreme court, of the corporate United states, hands down Hawker v. New York: State statutes prohibiting physicians convicted of illegal medical procedures from practicing medicine before its enactment do not constitute a violation of Article I, Section 10, Clause 1.
[added 11/20/2013]
Subsequent Events:
Authority:
“Law of the Jungle”
ccc-2point0.com/preface
References:
Hawker v. New York – Wikipedia
en.wikipedia.org/wiki/Hawker_v._New York