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	1.	A bacterin against fowl cholera in turkeys: protective quality of various preparations originated from broth cultures. [electronic resource] by Matsumoto, M Helfer, D H Producer: 19771125 In: Avian diseases vol. 21 Availability: No items available. Save to lists Add to cart (remove)
	2.	Pasteurella anatipestifer infection in turkeys. [electronic resource] by Helfer, D H Helmboldt, C F Producer: 19780417 In: Avian diseases vol. 21 Availability: No items available. Save to lists Add to cart (remove)
	3.	The effect of vitamin E, methionine and selenium on degenerative myopathy in turkeys. [electronic resource] by Harper, J A Helfer, D H Producer: 19730305 In: Poultry science vol. 51 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Spinal neurofibroma in a sheep. [electronic resource] by Helfer, D H Stevens, D R Producer: 19790716 In: Veterinary pathology vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	5.	Adiaspiromycosis in the lungs of a goat. [electronic resource] by Koller, L D Helfer, D H Producer: 19780929 In: Journal of the American Veterinary Medical Association vol. 173 Availability: No items available. Save to lists Add to cart (remove)
	6.	Parasitic encephalitis in pigeons. [electronic resource] by Helfer, D H Dickinson, E O Producer: 19760602 In: Avian diseases vol. 20 Availability: No items available. Save to lists Add to cart (remove)
	7.	The gerbil--a new experimental host for Fasciola hepatica. [electronic resource] by Helfer, D H Knapp, S E Producer: 19701201 In: The Journal of parasitology vol. 54 Availability: No items available. Save to lists Add to cart (remove)
	8.	Isolation of two turkey influenza viruses in Oregon. [electronic resource] by Beard, C W Helfer, D H Producer: 19730208 In: Avian diseases vol. 16 Availability: No items available. Save to lists Add to cart (remove)
	9.	Avian pox in California quail from Oregon. [electronic resource] by Crawford, J A Oates, R M Helfer, D H Producer: 19800128 In: Journal of wildlife diseases vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	10.	Avian pox in California quail from Oregon. [electronic resource] by Crawford, J A Oates, R M Helfer, D H Producer: 19800128 In: Journal of wildlife diseases vol. 15 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	11.	Case report--clostridium septicum infection in a broiler flock. [electronic resource] by Helfer, D H Dickinson, E M Smith, D H Producer: 19690507 In: Avian diseases vol. 13 Availability: No items available. Save to lists Add to cart (remove)
	12.	A new viral respiratory infection in parakeets. [electronic resource] by Helfer, D H Schmitz, J A Seefeldt, S L Lowenstine, L Producer: 19810226 In: Avian diseases vol. 24 Availability: No items available. Save to lists Add to cart (remove)
	13.	Degenerative myopathy of the deep pectoral muscle in the turkey. [electronic resource] by Harper, J A Bernier, P E Helfer, D H Schmitz, J A Producer: 19760510 In: The Journal of heredity vol. 66 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	14.	Duration of exposure--histological effects on broiler lungs, performance, and house environment with Mt. St. Helens' volcanic ash dust. [electronic resource] by Bland, M C Nakaue, H S Goeger, M P Helfer, D H Producer: 19850404 In: Poultry science vol. 64 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	15.	Effect of low salt, sodium, and chloride levels in poult rations on growth, bone development, and related factors. [electronic resource] by Egwuatu, C O Harper, J A Helfer, D H Arscott, G H Producer: 19830527 In: Poultry science vol. 62 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	16.	Acanthocephalan parasitism in the Western Bluebird (Sialia mexicana). [electronic resource] by Thompson-Cowley, L L Helfer, D H Schmidt, G D Eltzroth, E K Producer: 19800317 In: Avian diseases vol. 23 Availability: No items available. Save to lists Add to cart (remove)