Subjects: *COVID-19 pandemic; *STOMACH cancer; *PROCTOLOGYJAPAN
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Subjects: APPENDICITIS; COVID-19 pandemic; LEUKOCYTE countJAPAN
Subjects: TRANSPLANTATION of organs, tissues, etc.; KIDNEY transplantation; COVID-19 pandemicJAPAN
Subjects: COVID-19 pandemic; TIME series analysis; COVID-19JAPAN
Subjects: COVID-19 pandemic; MEDICAL personnel; DEATH rateJAPAN; CHINA