(1)
Sachs, M.; Bar, A.; Nir, O.; Ochovsky, D.; Machnai, B.; Meir, E.; Weiner, B. Z.; Mazor, Z. Efficacy of 1α Hydroxyvitamin D3 in the Prevention of Bovine Parturient Paresis. Bov. pract. 1987, 117-120.