Gewone smeerwortel (Dutch Wikipedia)

Analysis of information sources in references of the Wikipedia article "Gewone smeerwortel" in Dutch language version.

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doi.org

Oberlies, Nicholas H, Kim, Nam-Cheol, Brine, Dolores R, Collins, Bradley J, Handy, Robert W (2007). Analysis of herbal teas made from the leaves of comfrey (Symphytum officinale): Reduction of N-oxides results in order of magnitude increases in the measurable concentration of pyrrolizidine alkaloids. Public Health Nutrition 7 (7): 919–24. PMID 15482618. DOI: 10.1079/phn2004624.

nih.gov

ncbi.nlm.nih.gov

Oberlies, Nicholas H, Kim, Nam-Cheol, Brine, Dolores R, Collins, Bradley J, Handy, Robert W (2007). Analysis of herbal teas made from the leaves of comfrey (Symphytum officinale): Reduction of N-oxides results in order of magnitude increases in the measurable concentration of pyrrolizidine alkaloids. Public Health Nutrition 7 (7): 919–24. PMID 15482618. DOI: 10.1079/phn2004624.