RT Journal Article SR Electronic T1 Spontaneous remission of a large thyroid tumour JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 447 OP 447 DO 10.1503/cmaj.150400 VO 188 IS 6 A1 Kenta Watanabe A1 Koichi Kajiwara YR 2016 UL http://www.cmaj.ca/content/188/6/447.abstract AB