1. Adair HS (1990) What is your diagnosis? J Am Vet Med Assoc 196:1023–1024
2. Austin SM, DiPietro JA, Foreman JH et al (1991) Comparison of the efficacy of ivermectin, oxibendazole, and pyrantel pamoate against 28-day Parascaris equorum larvae in the intestine of pony foals. J Am Vet Med Assoc 198:1946–1949
3. Bello TR (1999) Endoparasitism. In: Colahan PT, Mayhew IG, Merritt AM, Moore JN (eds) Equine medicine and surgery, 5th edn. St. Louis, Mosby, p 729
4. Boersema JH, Eysker M, Nas JWM (2002) Apparent resistance of Parascaris equorum to macrocyclic lactones. Vet Rec 150:279–281
5. Boyle AG, Houston R (2006) Parasitic pneumonitis and treatment in horses. Clin Tech Equine Pract 5:225–232