- Pharmaceutical Online (www.pharmaceuticalonline.com/solution/liquid-dose)
- Food and Drug Administration (www.fda.gov)
- USP (www.usp.org)
- ISO (www.iso.org)
- Medicines and Healthcare Products Regulatory Agency (MHRA) (www.gov.uk)
- PDA (www.pda.org)
- ISPE (www.ispe.org)
- PMMI (www.pmmi.org)
- International Conference on Harmonization (ICH) (www.ich.org)
- European Medicines Agency (EMA) (www.ema.europa.eu)
- Product Quality Research Institute (PQRI) (www.pqri.org)
- Australia Therapeutic Goods Administration (TGA) (www.tga.gov/au)
- Canada Therapeutic Products Directorate (TPA) (www.canada.ca/en/health-canada)
- Japan Pharmaceuticals and Medical Devices Agency (PMDA) (www.pmda.go.jp/english)
- China State Food and Drug Administration (SFDA) (sfdachina.com)