1. Department of Pulmonology, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.
2. Department of Biostatistics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.
3. Respiratory Disease Center, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan.
Recebido: 24 junho 2020.
Aprovado: 3 novembro 2020.
Trabalho realizado na Yokohama City University Graduate School of Medicine e no Yokohama City University Medical Center, Yokohama, Kanagawa, Japan.
Endereço para correspondência:
Keisuke Watanabe. Department of Pulmonology, Yokohama City University Graduate School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama, Kanagawa, 236-0004, Japan.
Tel.: 81 45 352-7962, Fax: 81 45 352-7963. E-mail: YCUmedRDCkw@yahoo.co.jp
Apoio financeiro: Nenhum.