[11] Angulo-Barroso RM， Peirano P， Algarin C， et al. Motor activity and intra-individual variability according to sleepwake states in preschool-aged children with iron-deficiency anemia in infancy[J]. Early Hum Dev， 2013， 89(12)： 1025-1031.

    [12] Song CH， Kim YH， Jung KI， et al. Associations of zinc and copper levels in serum and hair with sleep duration in adult women[J]. Biol Trace Elem Res ......