Kinchin, Irina, Currow, David C., Chang, Sungwon, Reddel, Helen K, Kochovska, Slavica, Ferreira, Diana, Johnson, Miriam, Ekström, Magnus, "Breathlessness, anxiety, depression and function - the BAD-F study: a cross-sectional, population prevalence study in adults.", Journal of Pain and Symptom Management, 2020