1. Editorial comment: identification of prescribed drugs on the label of the container;Shirkey;J Pediatr,1967
2. Therapeutic orphans;Shirkey;J Pediatr,1968
3. An update on the therapeutic orphan;Wilson;Pediatrics,1999
4. US Food and Drug Administration Modernization Act of 1997 http://www.fda.gov/RegulatoryInformation/Legislation/SignificantAmendmentstotheFDCAct/FDAMA/FullTextofFDAMAlaw/default.htm
5. Best Pharmaceuticals for Children Act 2002 http://frwebgate.access.gpo.gov/cgi-bin/getdoc.cgi?dbname=107_cong_public_laws&docid=f:publ109.107