To estimate the prevalence of vitamin D deficiency (25(OH)D) <50 nmol/L among recently arrived immigrants from Africa and Asia in Oslo, and to explore 25(OH)D levels according to origin, gender and age.
Ribosomes<span> are different from other </span>organelles<span> because they have no membrane around them that separates them from other </span><span>organelles.
Hope that helps :)</span>