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. 2020 Jul 23;47(5):715–726. doi: 10.1016/j.anl.2020.07.009

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© 2020 The Authors. Published by Elsevier B.V. on behalf of Oto-Rhino-Laryngological Society of Japan Inc.

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Fig. 1 — (A) sPPE (standard PPE): PPE based on standard precautions. “Surgical masks, gloves” (B) E-PPE (Eye-PPE): PPE in which eye protection (E) is added to sPPE. "Surgical mask, gloves, face shields, or goggles" (C) EB-PPE (Eye/Body-PPE): PPE in which eye protection (E) and body protection (B) are added to sPPE. "Surgical masks, gloves, face shields or goggles, and gown or apron" (clean exposed skin of the upper extremities after using the apron). (D) full-PPE: Preventive measures against aerosol infections.