This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$209.00 per year
only $17.42 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
References
World Health Organization. UN Prequalified Vaccines: Hepatitis B Vaccines (World Health Organization, Geneva, 2004). http://www.who.int/vaccines-access/quality/un-prequalified/unhepbproducers.htm
Rights and permissions
About this article
Cite this article
Reply to 'Regulatory frameworks in developing countries'. Nat Biotechnol 23, 413–414 (2005). https://doi.org/10.1038/nbt0405-413b
Published:
Issue Date:
DOI: https://doi.org/10.1038/nbt0405-413b