Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 40 checked references that resolve
resolves10.1111/j.1532-5415.2006.00745.xResearch Agenda for Frailty in Older Adults: Toward a Better Understanding of Physiology and Etiology: Summary from the American Geriatrics Society/National Institute on Aging Research Conference on Frailty in Older Adults
resolves10.1111/ggi.12190Frailty as a predictor of all-cause mortality in older men and women
resolves10.1186/1471-2318-10-57A Frailty Instrument for primary care: findings from the Survey of Health, Ageing and Retirement in Europe (SHARE)
resolves10.1007/s11357-012-9396-8Immune-endocrine biomarkers as predictors of frailty and mortality: a 10-year longitudinal study in community-dwelling older people
resolves10.1111/acel.12068Identification of a metabolic signature for multidimensional impairment and mortality risk in hospitalized older patients
resolves10.1111/j.1538-7836.2011.04222.xSerum osteoprotegerin is a predictor for incident cardiovascular disease and mortality in a general population: the Tromsø Study
resolves10.1016/j.jacc.2007.09.058Circulating Osteoprotegerin Levels and Long-Term Prognosis in Patients With Acute Coronary Syndromes
resolves10.1371/journal.pone.0134266Elevated Circulating Osteoprotegerin and Renal Dysfunction Predict 15-Year Cardiovascular and All-Cause Mortality: A Prospective Study of Elderly Women
resolves10.1007/s00223-004-0007-2Relationships Between the Changes of Serum Levels of OPG and RANKL with Age, Menopause, Bone Biochemical Markers and Bone Mineral Density in Chinese Women Aged 20-75
resolves10.1210/jcem.86.7.7657Osteoprotegerin Serum Levels in Men: Correlation with Age, Estrogen, and Testosterone Status<sup>1</sup>
resolves10.1093/ageing/afp015The association between dehydroepiandosterone and frailty in older men and women
resolves10.1007/BF03324545Serum levels of insulin-like growth factor-I (IGF-I) and dehydroepiandrosterone sulfate (DHEA-S), and their relationships with serum interleukin-6, in the geriatric syndrome of frailty
resolves10.1007/s40618-015-0421-5Serum levels of the bone turnover markers dickkopf-1, sclerostin, osteoprotegerin, osteopontin, osteocalcin and 25-hydroxyvitamin D in Swedish geriatric patients aged 75 years or older with a fresh hip fracture and in healthy controls
resolves10.1093/gerona/glt012Thyroid Hormones as Predictors of Short- and Long-term Mortality in Very Old Hospitalized Patients
resolves10.1210/jc.2017-02149Degree of Peripheral Thyroxin Deiodination, Frailty, and Long-Term Survival in Hospitalized Older Patients
resolves10.2147/CIA.S164174Frailty and nutritional status in older people: the Mini Nutritional Assessment as a screening tool for the identification of frail subjects
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