Seroprevalence of SARS-CoV-2 in Brazil: A systematic review and meta-analysis Gerusa Maria Figueiredo; Fátima Mitiko Tengan; Sergio Roberto Campos; Expedito José Luna;

Outcomes after rotator cuff repair in the elderly as assessed by the American Shoulder and Elbow Surgeons shoulder score Yushun Fang; Qingsong Zhang;

Pretreatment plasma fibrinogen level as a prognostic biomarker for patients with lung cancer Yi Zhang; Junyan Cao; Yinan Deng; Yiming Huang; Rong Li; Guozhen Lin; Min Dong; Zenan Huang;