RT Journal Article SR Electronic T1 Tooth agenesis JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr0820114681 DO 10.1136/bcr.08.2011.4681 VO 2011 A1 Upendra Jain A1 Amitabh Kallury A1 Gagan Thakur YR 2011 UL http://casereports.bmj.com/content/2011/bcr.08.2011.4681.abstract AB