Ahmad Mohammad Abbas, Mohammad Mabrouk Aboulwafa, Khaled Mohamed Aboshanab, Nadia Abdel- Haleem Hassouna
Actinomyces hyovaginalis A11-2, a soil isolate obtained throughout aprevious screening program able to transform vitamin D3 to its biologically activeform, calcitriol (1α, 25-dihydroxy vitamin D3).