TY - GEN AU - Baue,A E TI - Surgery SN - 0098-7484 PY - 1979///0626 KW - Cardiac Surgical Procedures KW - General Surgery KW - History, 20th Century KW - Humans KW - Medical Laboratory Science KW - instrumentation KW - Neurosurgery KW - Specialization KW - Surgical Procedures, Operative N1 - Publication Type: Historical Article; Journal Article ER -