| Q36529141 | Age-related symptom and life quality changes in women with irritable bowel syndrome |
| Q48028719 | Cohort Profile: The 10/66 study |
| Q36546866 | Depression and associated factors in older adults in South Africa |
| Q45903431 | Effects of a cognitive training program and sleep hygiene for executive functions and sleep quality in healthy elderly. |
| Q33795113 | Human longevity is associated with regular sleep patterns, maintenance of slow wave sleep, and favorable lipid profile. |
| Q37254636 | Identifying elders with neuropsychiatric problems in a clinical setting |
| Q47723047 | Impact of insomnia on self-perceived health in the elderly |
| Q38955011 | Insomnia and Multimorbidity in the Community Elderly in China |
| Q36117901 | Predicting personality disorder functioning styles by the Chinese Adjective Descriptors of Personality: a preliminary trial in healthy people and personality disorder patients |
| Q35055237 | Prevalence and risk factors of poor sleep quality among Chinese elderly in an urban community: results from the Shanghai aging study |
| Q97681191 | Prevalence and socio-demographic correlates of poor sleep quality among older adults in Hebei province, China |
| Q38665792 | Sleep complaints are associated with frailty in Mexican older adults in a rural setting. |
| Q94188583 | Sleep problems and associated factors in a rural population of a Southern Brazilian city |
| Q37275488 | Socio-demographic predictors of sleep complaints in indigenous Siberians with a mixed economy |
| Q34151525 | Subclinical hearing loss, longer sleep duration, and cardiometabolic risk factors in Japanese general population |
| Q40188245 | Suicide ideation, dementia and mental disorders among a community sample of older people in Mexico |
| Q47599969 | The association between subjectively impaired sleep and symptoms of depression and anxiety in a frail elderly population |