Residential exposure to greenspace and life satisfaction in times of COVID-19: a cross-sectional analysis of 9444 participants from a population-based study in Basel-Stadt and Basel-Landschaft - Ayoung Jeong; Fiona Galliker; Medea Imboden; Dirk Keidel; Kees de Hoogh; Danielle Vienneau; Michael Siegrist; Luca Crivelli; Gianfranco Lovison; Nicole Probst-Hensch (Swiss Medical Weekly, 2022)