Basic bibliographic information for each of the images used in The Drost Project Visual Guide is displayed on each image page. Almquist JO, PhD Pennsylvania State University, College Station PA Asbury Atwood (Woody) C, DVM, Dipl ACT University of Florida, Gainesville FL Ball Barry A, DVM, PhD, Dipl ACT University of California, Davis CA Ball Les, DVM, MS, Dipl ACT Colorado State University, Ft Collins CO Bartolome Julian, DVM, MS, PhD, Dipl ACT Universidad Nacional de la Pampa, ARGENTINA Benesch Franz and Wright John G Veterinary Obstetrics, Williams and Wilkins Company, 1951 Benz Michael, DVM Loeffingen, GERMANY Bergin WC, DVM, MS Kamuela HI Betteridge Keith J, DVM, PhD University of Guelph, Guelph ON, CANADA Bierschwal CJ (Busch), DVM, Dipl ACT University of Missouri, Columbia MO Binns Wayne, PhD United States Department of Agriculture, ID Block Jeremy, PhD University of Florida, Gainesville FL Blough Emily J, DVM Lafayette IN BonDurant Robert H, DVM, Dipl ACT University of California, Davis CA Brand Arie, DVM, PhD Utrecht University, Utrecht THE NETHERLANDS Braun R Kenneth, DVM, MS, Dipl ACT University of Florida, Gainesville FL Breed Matthew, DVM University of Florida, Gainesville FL Bronson Andrew, DVM Livestock Veterinary Services, Picture Butte AB, CANADA Buergelt CD, DVM, PhD, Dipl ACVP University of Florida, Gainesville FL Calderón Gabriel, DVM Columbia River Dairies, Boardman OR Campbell Joy Meander Creek Stable, Berlin Center OH Canisso Igor Frederico, DVM, MS Federal University of Parana, BRAZIL Cavalieri John, BVSc, PhD James Cook University, Townsville QLD, AUSTRALIA Chenoweth Peter J, DVM, PhD, Dipl ACT Wagga Wagga NSW, AUSTRALIA Christensen Bruce, DVM, Dipl ACT University of Florida, Gainesville FL Clark Tracy, DVM, MS, Dipl ACT Iowa State University, Ames IA Colloton Jill D, DVM Edgar WI Costa Marcelo Z, Med Vet, MSc Universidade da Grande Dourados, Dourados-MS BRAZIL Cripe Wyland S, DVM University of Florida, Gainesville FL deBois CHW, DVM, PhD Utrecht University, Utrecht THE NETHERLANDS Donovan Arthur, DVM, MS University of Florida, Gainesville FL Dow Charlotte A, DVM University of Florida, Gainesville FL Drost Maarten, DVM, Dipl ACT University of Florida, Gainesville FL Edmiston Lee, DVM Houston MN Edmunds Elizabeth E, DVM Snohomish WA Eischen James J, DVM El Reno OK El-Naggar MahmoudAbdel-Mohsen Hussein, BVSc, PhD Assiut University, Assiut EGYPT Evans Lawrence E, DVM, MS, PhD, Dipl ACT Iowa State University, Ames IA Fields Michael J, PhD University of Florida, Gainesville FL Foote Robert H, PhD Cornell University, Ithaca NY Fountaine James, DVM, Dipl ABVP Kenyon MN Franco J Oscar, DVM Caracas VENUZUELA Gasparrini Bianca, DVM, PhD Frederico II University, Naples ITALY Geisert Rod, PhD Oklahoma State University, Stillwater OK Goemann, Gerhardt G, DVM Cohasset MN Goetze HC Richard, DVM, PhD University of Hannover, Hannover GERMANY Grimmett Jeffrey B, DVM, Dipl ACT University of Florida, Gainesville FL Haibel George K, DVM, Dipl ACT University of Florida, Gainesville FL Hansen Peter J, PhD University of Florida, Gainesville FL Hinson Lee, DVM Union MO Hopper Richard M, DVM, Dipl ACT Mississippi State University, Mississippi State MS Hughes John P, DVM, Dipl ACT University of California, Davis CA Hulet CV, PhD Dubois ID Hunnicutt Brian A, DVM Berryville AR Iturreria Martin, DVM Ameghino, Provincia de Buenos Aires ARGENTINA Kaiser Lana, MD, DVM Kaiser Cattle Company, Mason MI Kasimanickam Ramanathan, DVM, Dipl ACT Virginia Tech, Blacksburg VA Kelleman Audrey A, DVM, Dipl ACT University of Pennsylvania, Kennett Square PA King Alana C, DVM University of Florida, Gainesville FL Larsen Rolf E, DVM, MS, PhD, Dipl ACT University of Florida, Gainesville FL LeBlanc Michelle M, DVM, Dipl ACT University of Florida, Gainesville FL Leck Arthur A, DVM Ashland OR Leduc Fanny, DVM Reporoa NEW ZEALAND Lunsford Nicolette Drost, DVM Lunsford Veterinary Services, Springdale AR Martin John M, DVM, Dipl ACT University of Florida, Gainesville FL McEntee Kenneth, DVM, PhD Cornell University, Ithaca NY Medic David V, DVM Clarks Mills PA Miskimins Dale W, DVM, MS South Dakota State University, Brookings SD Misra Aditya K, DVM, PhD GB Pant University, Pantnagar INDIA Moore Karen, PhD University of Florida, Gainesville FL Morris Robert G, DVM South West City MO Morrow David A, DVM, PhD, Dipl ACT Michigan State University, East Lansing MI Nicoletti Paul L, DVM, MS University of Florida, Gainesville FL Pieterse Maarten C, DVM, Dipl ECAR Utrecht University, Utrecht THE NETHERLANDS Plathotnik Andrey, DVM Syberia RUSSIA Postley Carol Fairmeadow Farms, Ocala FL Pozor Malgorzata A, DVM, PhD, Dipl ACT University of Florida, Gainesville FL Prado Tulio M, DVM University of Tennesee, Knoxville TN Pugh David G, DVM Waverly AL Rathwell Alan C, DVM, Dipl ACT University of Florida, Gainesville FL Richter Johannes DVM, PhD University of Leipzig, Leipzig GERMANY Risco Carlos A, DVM, Dipl ACT University of Florida, Gainesville FL Roberts Stephen J, DVM, MS, Dipl ACT Cornell University, Ithaca NY Roodzant James P, DVM DeMotte IN Santos Jose EP, DVM, PhD University of Florida, Gainesville FL Schneider HJ, PhD Hockley TX Schuijt Gerrit, DVM, PhD Utrecht University, Utrecht THE NETHERLANDS Seemann Carl W, DVM Bemidji MN Seguin Brad, DVM, PhD, Dipl ACT University of Minnesota, St Paul MN Seidel George E, PhD Colorado State University, Ft Collins CO Shelgren Jess S, DVM Te Awamutu NEW ZEALAND Shille Victor M, DVM, PhD, Dipl ACT University of Florida, Gainesville FL Shipley Clifford F, DVM, Dipl ACT University of Illinois, Urbana IL Smith Mary C, DVM, Dipl ACT Cornell University, Ithaca NY Smith Paul J, DVM Kennebec Veterinary Services Inc, Oakland ME Steffen David, DVM, PhD, Dipl ACVP University of Nebraska-Lincoln, Lincoln NE Stout TAE (Tom), VetMB, PhD, Dipl ECAR Utrecht University, Utrecht THE NETHERLANDS Tanabe TY, PhD University of Wisconsin, Madison WI Thatcher Marie-Joelle University of Florida, Gainesville FL Thatcher William W, PhD University of Florida, Gainesville FL Theilen Gordon H, DVM University of California, Davis CA Thigpin Katherin A, DVM Ashland Terrace Animal Hospital, Chattanooga TN Tiwari Rajendra P, DVM Veterinary College Anjora, Durg INDIA Utrecht Obstetrical Clinic Utrecht University, Utrecht THE NETHERLANDS Vale William G, DVM Universidada Federal do Para, Belem BRASIL Varga Anita, DVM Ohio State University, Columbus OH Volkmann Dietrich H, BVSc, MMedVet, Dipl ACT University of Missouri, Columbia MO Willis Lisa JT, DVM Georgetown TX Wolfe Dwight F, DVM, Dipl ACT Auburn University, Auburn AL Worobey Tom, dairyman Valley High Farm, Jordanville NY Wright Joseph M, DVM Castroville TX Zambrano-Varon Jorge, DVM, MPVM University of California, Davis CA