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. 1986 Feb;38(2):115-8.
doi: 10.1007/BF02556839.

Diurnal variation of serum calcium and phosphorus in postmenopausal women

H M Perry 3rd, M A Province, D M Droke, G S Kim, S Shaheb, L V Avioli

Diurnal variation of serum calcium and phosphorus in postmenopausal women

H M Perry 3rd et al. Calcif Tissue Int. 1986 Feb.

Abstract

Serum calcium, ionized calcium, and phosphorus have been obtained at hourly intervals in nine healthy postmenopausal women. The hourly means of ionized calcium and phosphorus demonstrate significant diurnal variation with a similar apogee, nadir, and periodicity (24 hours). These results are distinct from the diurnal variation of ionized calcium and phosphorus previously reported for young men and provide more evidence of an altered mineral hemostasis in postmenopausal women.

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