Objective: To investigate the knowledge, attitude, and practice on disposable plastic tableware and self reported gastrointestinal symptoms in college students. Methods: Stratified sampling method was applied in 338 students of a medical university during the 2020-2021 academic year. The study investigated knowledge, attitude and practice on disposable plastic tableware and self reported gastrointestinal symptoms among students. Results: There were 24.0% students were unaware of the specific material of plastic tableware, 82.0% students had no idea about the meaning of "plastic products logo". About 94.1% of the students thought that plastic tableware might contaminate food, and female students (97.1%) were more worried than male (86.3%) ( χ 2=14.32, P <0.05). The attitude towards the use of disposable tableware was not consistent with the cumulative use score of disposable plastic tableware ( F=1.31, P =0.25),students with high consumption had higher score of accumulative use of disposable plastic tableware ( F=8.32, P <0.01). About 18.3% of the students were prone to report gastrointestinal symptoms. The cumulative scores of disposable plastic tableware weekly using frequency in students who reported gastrointestinal symptoms(14.85±4.01) was still higher than that of no gastrointestinal symptoms group(13.78±3.50), regardless of the effect of takeout ordering frequency( F=4.53，P = 0.03 ). Conclusion College students have limited knowledge of disposable plastic products. However, the use of disposable plastic products may be associated with gastrointestinal diseases. It is suggested to active the propaganda and education, to reduce the use of disposable tableware, and enhance the awareness of health and environment.

Hodgkin lymphoma (HL) is a curable malignancy for most patients, while the treatment of relapsed and refractory (R/R) HL is still facing severe challenges. In the 60th American Society of Hematology (ASH) Annual Meeting, many researches reported the latest development of the treatment of R/R HL. For chemosensitive patients, autologous stem cell transplantation after high-dose of salvage chemotherapy still remains the standard treatment method. The emerging of antibody drug conjugate, inhibitors of programmed death-1, chimeric antigen receptor T-cell immunotherapy and the combinations of multiple drugs have brought an increasing options for R/R HL treatment. This paper reviews the progress of R/R HL therapy.