机译:The associations of bedtime, nocturnal, and daytime sleep duration with bone mineral density in pre- and post-menopausal women
Nanjing Univ Chinese Med, Jiangsu Prov Hosp Integrat Chinese & Western Med, Dept Endocrinol;
Suzhou Univ, Affiliated Hosp 3, Peoples Hosp Changzhou 1, Dept Endocrinol, Changzhou 213003;
Bedtime; Nocturnal sleep duration; Daytime sleep duration; Bone mineral density (BMD); Osteoporosis;