1. “25 years of excellence, 1979 to 2004,” Certification Board Perioperative Nursing http://www.certboard.org/sc25yr_intro.htm
2. “About CBPN,” Certification Board Perioperative Nursing http://www.certboard.org/about/index_about.htm
3. “CBPN accreditations,” Certification Board Perioperative Nursing http://www.certboard.org/accreditations.htm
4. “2004 CNOR certification,” Certification Board Perioperative Nursing http://www.certboard.org/cnor/cert/gen_info.htm