Bibliography lists 6 sources. A 5 page paper that provides an overview of the current findings that relate the overuse of vitamin A in the form of retinal to cranial neural crest defects. Bibliography lists 5 sources. A 6 page paper discussing the birth-defect causing drug thalidomide prescribed to pregnant women as a sedative and defense against nausea. Despite the terrible problems it caused in the 1950s and early 1960s, the drug is being reintroduced for use in treatment of several diseases.
Bibliography lists six sources.