authors Llewellyn, David J Lang, Iain A Kenneth Langa, MD, PhD Muniz-Terrera, Graciela Phillips, Caroline L Cherubini, Antonio Ferrucci, Luigi Melzer, David
has subject area Aged Cognition Cognition Disorders Female Follow-Up Studies Humans Incidence Italy Male Population Surveillance Prognosis Prospective Studies Radioimmunoassay Risk Factors Time Factors Vitamin D Vitamin D Deficiency Vitamins