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2. 25-hydroxyvitamin D levels during breastfeeding with or without maternal or infantile supplementation of vitamin D;Ala-Houhala, M.
3. Report on health atnd social subjects;Department of Health and Social Security,1980
4. Vitamin D deficiency in Asian children in Britain - a casc for prophylactic supplementation?;Belton, N.R.; Grindulis, H.; Scott, B.A.; Wharton, B.A.,1985
5. Maternal vitamin D intake and mineral metabolism in mothers and their newborn infants;Cockburn, F.; Belton, N.R.; Purvis, R.J.;Br Med J,1980