Social isolation, loneliness and their relationships with depressive symptoms: A population-based study Ge, Lixia ; Yap, Chun Wei ; Ong, Reuben ; Heng, Bee Hoon Abstract Publication: PLoS ONE Pub Date: August 2017 DOI: 10.1371/journal.pone.0182145 Bibcode: 2017PLoSO..1282145G