Article Title,Year,Volume,Issue,Page Range,Author Proposal to apply a "Positive Emotion Engagement Relationships Meaning and Accomplishment (PERMA)" based approach to manage the COVID-19-related mental health problems in the era of long COVID,2024,6,2,160-163,Sun Updated information concerning trends in suicide rates in elderly in China 2002-2020,2024,6,3,204-211,Wang