1. Changes of biochemical constituents in bovine fetal fluids with gestational age;Baetz;Am. J. Vet. Res.,1976
2. Change in the concentration of reducing sugar in bovine fetal fluids during gestation;Matney;Growth,1951
3. Amniotic Fluid. Research and Clinical Application,1978
4. Amniotic Fluid. Physiology, Biochemistry, and Clinical Chemistry,1974
5. The origin and circulation of the amniotic fluid;McCarthy,1978