The effect of conventional vitamin D2 supplementation on serum 25(OH)D concentration is weak among peripubertal Finnish girls: a 3-y prospective study

[1] Ahonen MH(2000)Prostate cancer risk and prediagnostic serum 25-hydroxyvitamin D levels (Finland) Cancer Causes Control 11 847-852

[2] Tenkanen L(1988)Double blind study on the need for vitamin D supplementation in prepubertal children Acta Paediatr. Scand 77 89-93

[3] Teppo L(1998)Vitamin D and its major metabolites: serum levels after graded oral dosing in healthy men Osteoporos. Int 8 222-230

[4] Hakama M(1992)Vitamin D3 and calcium to prevent hip fractures in the elderly women New Engl. J. Med 327 1637-1642

[5] Tuohimaa P(1999)Vitamin D: seasonal and regional differences in preschool children in Great Britain Eur. J. Clin. Nutr 53 195-198

[6] Ala-Houhala M(1997)Effect of calcium and vitamin D supplementation on bone density in men and women 65 y of age or older New Engl. J. Med 337 670-676

[7] Koskinen T(1998)Seasonal deficiency of vitamin D in children: a potential target for osteoporosis-preventing strategies? J. Bone Miner. Res 13 544-548

[8] Koskinen M(1995)Vitamin D Lancet 345 104-107

[9] Visakorpi JK(1999)Vitamin D status during puberty in French healthy male adolescents Osteoporos. Int 10 222-225

[10] Barger L(1999)Plasma 25-hydroxyvitamin D responses of younger and older men to three weeks of supplementation with 1800 IU/day of vitamin D J. Am. Col. Nutr 18 470-474

[1] Ahonen MH(2000)Prostate cancer risk and prediagnostic serum 25-hydroxyvitamin D levels (Finland) Cancer Causes Control 11 847-852

[2] Tenkanen L(1988)Double blind study on the need for vitamin D supplementation in prepubertal children Acta Paediatr. Scand 77 89-93

[3] Teppo L(1998)Vitamin D and its major metabolites: serum levels after graded oral dosing in healthy men Osteoporos. Int 8 222-230

[4] Hakama M(1992)Vitamin D3 and calcium to prevent hip fractures in the elderly women New Engl. J. Med 327 1637-1642

[5] Tuohimaa P(1999)Vitamin D: seasonal and regional differences in preschool children in Great Britain Eur. J. Clin. Nutr 53 195-198

[6] Ala-Houhala M(1997)Effect of calcium and vitamin D supplementation on bone density in men and women 65 y of age or older New Engl. J. Med 337 670-676

[7] Koskinen T(1998)Seasonal deficiency of vitamin D in children: a potential target for osteoporosis-preventing strategies? J. Bone Miner. Res 13 544-548

[8] Koskinen M(1995)Vitamin D Lancet 345 104-107

[9] Visakorpi JK(1999)Vitamin D status during puberty in French healthy male adolescents Osteoporos. Int 10 222-225

[10] Barger L(1999)Plasma 25-hydroxyvitamin D responses of younger and older men to three weeks of supplementation with 1800 IU/day of vitamin D J. Am. Col. Nutr 18 470-474