DNA barcoding detects contamination and substitution in North American herbal products
BMC Medicine (2013) - Comments
pubmed: 24120035  doi: 10.1186/1741-7015-11-222  issn: 1741-7015 

Steven G Newmaster, Meghan Grguric, Dhivya Shanmughanandhan, Sathishkumar Ramalingam, Subramanyam Ragupathy