Prevalence and characteristics of somatic symptom disorder in the elderly in a community-based population: a large-scale cross-sectional study in China. - Wu, Yani; Tao, Zhengyu; Qiao, Yongxia; Chai, Yezi; Liu, Qiming; Lu, Qifan; Zhou, Hongmei; Li, Shiguang; Mao, Jialiang; Jiang, Meng; Pu, Jun (BMC Psychiatry, 2022)