Zimmerman, M. E., Bigal, M. E., Katz, M. J., Derby, C. A., & Lipton, R. B. (2013). Are Sleep Onset/Maintenance Difficulties Associated with Medical or Psychiatric Comorbidities in Nondemented Community-Dwelling Older Adults? American Academy of Sleep Medicine.

Zimmerman, Molly E., Marcelo E. Bigal, Mindy J. Katz, Carol A. Derby, and Richard B. Lipton. Are Sleep Onset/Maintenance Difficulties Associated With Medical or Psychiatric Comorbidities in Nondemented Community-Dwelling Older Adults? American Academy of Sleep Medicine, 2013.

Zimmerman, Molly E., et al. Are Sleep Onset/Maintenance Difficulties Associated With Medical or Psychiatric Comorbidities in Nondemented Community-Dwelling Older Adults? American Academy of Sleep Medicine, 2013.