analysis calcium calciumchannels calciuminhumannutrition calciumsignaling cancer cellularsignaltransduction control cytology diet dietary drugtherapy high-calciumdiet hypertension metabolism neoplasms nutritionalrequirements osteoporosis osteoporosisinwomen pharmacology physiologicaleffect physiology popularworks prevention qv276c143632006 qv276d4791979 qv276p8951994 secondmessengers(biochemistry) technique therapeuticuse vitamindinhumannutrition