1. Bailey, D.J., Bradbury, M.W., France, U.M., Hedley, R., Naik, S., and Parry, H. (1979) Cation transport across the guinea-pig placenta perfused in situ. J. Physiol. (Lond.) 287, 45–56.
2. Baker, E. and Morgan, E.H. (1970) Iron transfer across the perfused rabbit placenta. Life Sci. 9, 773–779.
3. Bissonnette, J.M. (1975) Control of vascular volume in sheep umbilical circulation. J. Appl. Physiol. 38,1057–1061.
4. Bissonnette, J.M. and Farrell, R.C. (1973) Pressure-flow and pressure-volume relationships in the fetal placental circulation. J. Appl. Physiol. 35, 355–360.
5. Bissonnette, J.M. and Gurtner, G.H. (1972) Transfer of inert gases and tritiated water across the sheep placenta. J. Appl. Physiol. 32, 64–69.