PT - JOURNAL ARTICLE AU - Naoki Matsuura TI - Schamroth sign AID - 10.1503/cmaj.190515 DP - 2019 Nov 11 TA - Canadian Medical Association Journal PG - E1251--E1251 VI - 191 IP - 45 4099 - http://www.cmaj.ca/content/191/45/E1251.short 4100 - http://www.cmaj.ca/content/191/45/E1251.full SO - CMAJ2019 Nov 11; 191