• Ulcerative Colitis and Crohn's Disease (1986)
• Gastrointestinal Intubation (1984)
• Anaerobic Digestion: Is It Right for Your Farm? (1990)
• The Human Digestive System (1991)
• Human Body: Organ Systems Working Together (1993)
• Paramecia: Slipper Animalcules (1990)
• In and Out (1987)
• The Most Important Person Series (1972)
• Digestion: The Inside Story (19??)
• Medicine Demystified: Gastro-Esophageal Reflux (1994)
• Medicine Demystified: Inflammatory Bowel Disease (1994)
• Human Body Series (Second Edition, Rev.) (1993)
• Our Wonderful Body Series (199?)
• Your Body: Digestive System (1994)
• Human Body: Digestive (1988)
• Your Living Body Series (199?)
• Your Body (1994)
• Digestive System (1994)
• Digestive System (1988)

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