Animal Science Group, Wageningen
Auburn University
PubMed - National Library of Medicine
Incubation and fertility research group
North Carolina State University
Penn State University
Poultry Science Association
Purdue University
Roslin Institute
Scottish Agricultural College
Texas A&M university
University of Arkansas
Avian University of California
University of Florida
University of Georgia
University of Guelph
Virginia Tech
World Poultry Science Association