PT - JOURNAL ARTICLE AU - J. C. Butt TI - Glass is detectable on plain radiographs DP - 1989 Apr 15 TA - Canadian Medical Association Journal PG - 897b--897 VI - 140 IP - 8 4099 - http://www.cmaj.ca/content/140/8/897b.short 4100 - http://www.cmaj.ca/content/140/8/897b.full SO - CMAJ1989 Apr 15; 140