Featured in the lessons:

• American Academy of Pediatrics Practice Management Online.
• Texas Department of State Health Services (DSHS) Texas Health Steps (THSteps) website, THSteps Periodicity Schedule.

Other references:

• U.S. Department of Health & Human Services "Specimen Management," Pawan Angra, MS. Division of Laboratory Systems, Public Health Program Practice Office.
• State of Texas Health & Safety Code, Chapter 85. Acquired Immune Deficiency Syndrome And Human Immunodeficiency Virus Infection, 1991.
• Gale Encyclopedia of Nursing & Allied Health, © 2002, Gale Group.
  
• Texas Medicaid Provider Procedures Manual, Section 43.
• Morbidity and Mortality Weekly Report, Centers for Disease Control and Prevention (CDC), June 24, 1988.
• Texas Department of State Health Services (DSHS) Laboratory Services Manual of Reference Services (MRS).
• Whatman® Neonatal Screening Blood Collection and Handling Procedure, 2005, published by the New York State Department of Health.
• "Guidelines for the Collection of Clinical Specimens," CAREC, Pan American Health Organization (PAHO), 2006.