1. Control of hemorrhagic condition in chickens with menadione sodium bisulfite;Frost;Poultry Sci.,1955
2. Prothrombin bioassay for vitamin K with different thromboplastin preparations;Griminger;Intern. J. Vit. Res.,1962
3. Arsanilic acid and blood coagulation;Griminger;Poultry Sci.,1962
4. Perdue, H. S., and D. V. Frost 1961. Recent developments on a proposed ANRC vitamin K reference standard. Feedstuffs, January 21, p. 56.