1. Aceto, T., Batt, R.E., Bruck, E., Schultz, R.B., Perez, Y.R.: Intrauterine hyperparathyroidism: a complication of untreated maternal hypoparathyroidism. J. Clin. Endocr. 26, 487?492 (1966)
2. Alexander, P.D., Britton, H.G., Nixon, D.A., Cameron, E., Foster, C.L., Buckle, R.M., Smith, F.G.: Calcium, Parathyroid hormone and Calci in the foetus. In: Foetal and neonatal physiology, p. 421?429. Proc. of Sir Josef Barcroft Centenary Symposium. Cambridge Univ. Press, 1973
3. Ball, J., Garner, A.: Mineralization of woven bone in osteomalacia. J. Path. Bact. 91, 562?567 (1966)
4. Bawden, J.W., Wolkoff, A.S., Flowers, C.E.: Maternal-fetal blood calcium relationships in the sheep. Obst. Gynaec. 25, 548?552 (1965)
5. Bawden, J.W., Wolkoff, A.S.: Foetal blood responses to maternal calcium infusion in the sheep. Am. J. Obst. Gynaecol. 99, 55?60 (1967)