PT - JOURNAL ARTICLE AU - So Sakamoto AU - Yasuhiro Suyama TI - Woman with blue thumb AID - 10.1136/emermed-2020-209683 DP - 2021 Apr 01 TA - Emergency Medicine Journal PG - 262--284 VI - 38 IP - 4 4099 - http://emj.bmj.com/content/38/4/262.short 4100 - http://emj.bmj.com/content/38/4/262.full SO - Emerg Med J2021 Apr 01; 38