RT Journal Article SR Electronic T1 COVID-19 associated pulmonary aspergillosis: a nationwide survey by the Japanese Respiratory Society JF ERJ Open Research JO erjor FD European Respiratory Society SP 00402-2021 DO 10.1183/23120541.00402-2021 VO 7 IS 4 A1 Takazono, Takahiro A1 Mukae, Hiroshi A1 Izumikawa, Koichi A1 Hasegawa, Naoki A1 Yokoyama, Akihito YR 2021 UL http://openres.ersjournals.com/content/7/4/00402-2021.abstract AB