1. Federal Food, Drug and Cosmetic Act (1938) Pub. L. No. 75-717, 52 Stat. 1040. Available at: http://catalog.archives.gov/id/299847
2. United States (2018) 21 Code of Federal Regulations (CFR) § 314.94. Available at: http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=314.94
3. United States (2018) 21 Code of Federal Regulations (CFR) §§ 312, 314. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=312 and https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?CFRPart=314
4. United States (2018) 21 Code of Federal Regulations (CFR) § 314.54. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=314.54
5. United States (2018) 21 Code of Federal Regulations (CFR) § 314.50. Available at: https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?fr=314.50.