Souza, E. N. F., Williamson, E. M. and Hawkins, J. A. ORCID: https://orcid.org/0000-0002-9048-8016 (2018) Which plants used in ethnomedicine are characterized? Phylogenetic patterns in traditional use related to research effort. Frontiers in Plant Science, 9. 834. ISSN 1664-462X doi: https://doi.org/10.3389/fpls.2018.00834

Smith, I., Silveirinha, V., Stein, J. L., de la Torre-Ubieta, L., Farrimond, J. A., Williamson, E. M. and Whalley, B. J. (2017) Human neural stem cell-derived cultures in three- dimensional substrates form spontaneously functional neuronal networks. Journal of Tissue Engineering and Regenerative Medicine, 11 (4). pp. 1022-1033. ISSN 1932-7005 doi: https://doi.org/10.1002/term.2001

Alsanad, S. M., Howard, R. L. and Williamson, E. M. (2016) An assessment of the impact of herb-drug combinations used by cancer patients. BMC complementary and alternative medicine, 16 (1). PMC5070090. ISSN 1472-6882 doi: https://doi.org/10.1186/s12906-016-1372-x

Poonthananiwatkul, B., Howard, R. L., Williamson, E. M. and Lim, R. H. ORCID: https://orcid.org/0000-0003-1705-1480 (2016) Why cancer patients choose in-patient complementary therapy in palliative care: a qualitative study at Arokhayasala Hospice in Thailand. European Journal of Integrative Medicine, 8 (3). pp. 260-265. ISSN 1876-3820 doi: https://doi.org/10.1016/j.eujim.2016.02.002

Klongsiriwet, C., Quijada, J., Williams, A. R., Mueller-Harvey, I., Williamson, E. M. and Hoste, H. (2015) Synergistic inhibition of Haemonchus contortus exsheathment by flavonoid monomers and condensed tannins. International Journal for Parasitology: Drugs and Drug Resistance, 5 (3). pp. 127-134. ISSN 2211-3207 doi: https://doi.org/10.1016/j.ijpddr.2015.06.001

Swioklo, S., Watson, K. A. ORCID: https://orcid.org/0000-0002-9987-8539, Williamson, E. M., Farrimond, J. A., Putnam, S. E. and Bicknell, K. A. ORCID: https://orcid.org/0000-0002-5888-1424 (2015) Defining key structural determinants for the pro-osteogenic activity of flavonoids. Journal of Natural Products, 78 (11). pp. 2598-2608. ISSN 1520-6025 doi: https://doi.org/10.1021/acs.jnatprod.5b00075

Poonthananiwatkul, B., Howard, R. L., Williamson, E. M. and Lim, R. H. M. ORCID: https://orcid.org/0000-0003-1705-1480 (2015) Cancer patients taking herbal medicines: a review of clinical purposes, associated factors, and perceptions of benefit or harm. Journal of Ethnopharmacology, 175. pp. 58-66. ISSN 0378-8741 doi: https://doi.org/10.1016/j.jep.2015.08.052

Smith, I., Williamson, E. M., Putnam, S., Farrimond, J. and Whalley, B. J. (2014) Effects and mechanisms of ginseng and ginsenosides on cognition. Nutrition Reviews, 72 (5). pp. 319-333. ISSN 1753-4887 doi: https://doi.org/10.1111/nure.12099

Williamson, E. M., Lorenc, A., Booker, A. and Robinson, N. (2013) The rise of Traditional Chinese Medicine and its materia medica: a comparison of frequency and safety of materials and species used in Europe and China. Journal of Ethnopharmacology, 149 (2). pp. 453-462. ISSN 0378-8741 doi: https://doi.org/10.1016/j.jep.2013.06.050

Liu, X., Wang, Q., Song, G., Zhang, G., Ye, Z. and Williamson, E. M. (2013) The classification and application of toxic Chinese Materia Medica. Phytotherapy Research, 28 (3). pp. 334-347. ISSN 0951-418X doi: https://doi.org/10.1002/ptr.5006

Peschel, W., Prieto, J. M., Karkour, C. and Williamson, E. M. (2013) Effect of provenance, plant part and processing on extract profiles from cultivated European Rhodiola rosea L. for medicinal use. Phytochemistry, 86. pp. 92-102. ISSN 0031-9422 doi: https://doi.org/10.1016/j.phytochem.2012.10.005

Williamson, E. M., Driver, S. and Baxter, K., eds. (2013) Stockley's herbal medicines interactions 2nd edition. Pharmaceutical Press, London, pp423. ISBN 9780853697602

Saslis Lagoudakis, C.H., Savolainen, V., Williamson, L., Forest, F., Wagstaff, S., Baral, S.R., Watson, M., Pendry, C. and Hawkins, J. ORCID: https://orcid.org/0000-0002-9048-8016 (2012) Phylogenies reveal predictive power of traditional medicine in bioprospecting. Proceedings of the National Academy of Sciences of the United States of America, 109 (39). pp. 15835-15840. ISSN 1091-6490 doi: https://doi.org/10.1073/pnas.1202242109

Chan, K., Shaw, D., Simmonds, M. S.J., Leon, C. J., Xu, Q., Lu, A., Sutherland, I., Ignatova, S., Zhu, Y.-P., Verpoorte, R., Williamson, E. M. and Duez, P. (2012) Good practice in reviewing and publishing studies on herbal medicine, with special emphasis on traditional Chinese medicine and Chinese materia medica. Journal of Ethnopharmacology, 140 (3). pp. 469-475. ISSN 0378-8741 doi: https://doi.org/10.1016/j.jep.2012.02.028

Shaw, D., Ladds, G., Duez, P., Williamson, E. and Chan, K. (2012) Pharmacovigilance of herbal medicines. Journal of Ethnopharmacology, 140 (3). pp. 513-518. ISSN 0378-8741 doi: https://doi.org/10.1016/j.jep.2012.01.051

Uzuner, H., Bauer, R., Fan, T.-P., Guo, D.-a., Dias, A., El-Nezami, H., Efferth, T., Williamson, E. M., Heinrich, M., Robinson, N., Hylands, P. J., Hendry, B. M., Cheng, Y.-C. and Xu, Q. (2012) Traditional Chinese medicine research in the post-genomic era: good practice, priorities, challenges and opportunities. Journal of Ethnopharmacology, 140 (3). pp. 458-468. ISSN 0378-8741 doi: https://doi.org/10.1016/j.jep.2012.02.028

Heinrich, M., Barnes, J., Gibbons, S. and Williamson, E. M. (2012) Fundamentals of pharmacognosy and phytotherapy. 2nd edition. Elsevier, Edinburgh, pp326. ISBN 9780702033889

Saslis-Lagoudakis, C. H., Klitgaard, B. B., Forest, F., Francis, L., Savolainen, V., Williamson, E. M. and Hawkins, J. A. ORCID: https://orcid.org/0000-0002-9048-8016 (2011) The use of phylogeny to interpret cross-cultural patterns in plant use and guide medicinal plant discovery: an example from Pterocarpus (Leguminosae). PLoS ONE, 6 (7). e22275. ISSN 1932-6203 doi: https://doi.org/10.1371/journal.pone.0022275

Saslis-Lagoudakis, C. H., Williamson, E. M., Savolainen, V. and Hawkins, J. ORCID: https://orcid.org/0000-0002-9048-8016 (2011) Cross-cultural comparison of three medicinal floras and implications for bioprospecting strategies. Journal of Ethnopharmacology, 135 (17). pp. 476-487. ISSN 0378-8741 doi: https://doi.org/10.1016/j.jep.2011.03.044

Upton, R., Graff, A., Jolliffe, G., Laenger, R. and Williamson, E., eds. (2011) American Herbal Pharmacopoeia: botanical pharmacognosy - microscopic characterization of botanical medicines. American Herbal Pharmacopoeia/CRC Press, Boca Raton, pp773. ISBN 9781420073263

Hill, A. J., Weston, S. E., Jones, N., Smith, I., Bevan , S., Williamson, E. M., Stephens, G. J. ORCID: https://orcid.org/0000-0002-8966-4238, Williams, C. M. ORCID: https://orcid.org/0000-0003-4452-671X and Whalley, B. J. (2010) Δ9-tetrahydrocannabivarin suppresses in vitro epileptiform and in vivo seizure activity in adult rat. Epilepsia, 51 (8). pp. 1522-1532. ISSN 0013-9580 doi: https://doi.org/10.1111/j.1528-1167.2010.02523.x

Shah, P., Donyai, P. ORCID: https://orcid.org/0000-0001-5403-6170 and Williamson, E. M. (2010) Students’ perception of the safety and value of a herbal vs. a conventional medicine for treating insomnia. International Journal of Pharmacy Practice, 17 (S2). B91-B92. ISSN 0961-7671 doi: https://doi.org/10.1211/096176709789037155

Williamson, E.M. and Rankin-Box, D. (2009) Complementary therapies, the placebo effect and the pharmacist. Complementary Therapies in Clinical Practice, 15 (3). pp. 172-179. ISSN 1744-3881 doi: https://doi.org/10.1016/j.ctcp.2009.06.001

Coats, A. and Williamson, E.M. (2009) Scientific deception: retraction of a fraudulent paper. International Journal of Cardiology, 131 (3). p. 297. ISSN 0167-5273 doi: https://doi.org/10.1016/j.ijcard.2008.10.037

Williamson, E., Driver, S. and Baxter, K., eds. (2009) Stockley’s herbal medicines interactions : a guide to the interactions of herbal medicines, dietary supplements, and nutraceuticals with conventional medicines. Pharmaceutical Press, London, pp431. ISBN 9780853697602

Williamson, E.M. (2009) Synergy and other interactions in phytomedicines. In: Evans, W.C. (ed.) Trease and Evans' pharmacognosy. Saunders Ltd., London, pp. 53-61. ISBN 9780702029332

Gulfraz, M., Mehmood, S., Ahmad, A., Fatima, N., Praveen, Z. and Williamson, E. M. (2008) Comparison of the antidiabetic activity of Berberis lyceum root extract and berberine in alloxan-induced diabetic rats. Phytotherapy Research, 22 (9). pp. 1208-1212. ISSN 0951-418X doi: https://doi.org/10.1002/ptr.2438

Smith, E. C. J., Williamson, E. M., Wareham, N., Kaatz, G. W. and Gibbons, S. (2007) Antibacterials and modulators of bacterial resistance from the immature cones of Chamaecyparis lawsoniana. Phytochemistry, 68 (2). pp. 210-217. ISSN 0031-9422 doi: https://doi.org/10.1016/j.phytochem.2006.10.001

Wilkinson, J. D. and Williamson, E. M. (2007) Cannabinoids inhibit human keratinocyte proliferation through a non-CB1/CB2 mechanism and have a potential therapeutic value in the treatment of psoriasis. Journal of Dermatological Science, 45 (2). pp. 87-92. ISSN 0923-1811 doi: https://doi.org/10.1016/j.jdermsci.2006.10.009

Scutt, A. and Williamson, E.M. (2007) Cannabinoids stimulate fibroblastic colony formation by bone marrow cells indirectly via CB2 receptors. Calcified Tissue International, 80 (1). pp. 50-59. ISSN 0171-967X doi: https://doi.org/10.1007/s00223-006-0171-7

Weston, S. E., Whalley, B.J., Wilkinson, J.D. and Williamson, E.M. (2007) Medicinal cannabis: new findings on extracts and minor cannabinoids. In: Capasso, A. (ed.) Recent developments in medicinal plant research. Research Signpost, Trivandrum, Kerala, India, pp. 39-62. ISBN 9788130801605

Putnam, S.E., Scutt, A.M., Bicknell, K. ORCID: https://orcid.org/0000-0002-5888-1424, Priestley, C.M. and Williamson, E.M. (2007) Natural products as alternative treatments for metabolic bone disorders and for maintenance of bone health. Phytotherapy Research, 21 (2). pp. 99-112. ISSN 0951-418X doi: https://doi.org/10.1002/ptr.2030

Williamson, E. M., Priestley, C. M. and Burgess, I. F. (2007) An investigation and comparison of the bioactivity of selected essential oils on human lice and house dust mites. Fitoterapia, 78 (7-8). pp. 521-525. ISSN 0367-326X doi: https://doi.org/10.1016/j.fitote.2007.06.001

Williamson, E. M. (2007) The medicinal use of essential oils and their components for treating lice and mite infestations. Natural Product Communications, 2 (12). pp. 1303-1310. ISSN 1934-578X

Rankin-Box, D. and Williamson, E.M. (2006) Complementary medicine: a guide for pharmacists. Churchill Livingstone Elsevier, London. ISBN 9780443070280

Priestley, C.M., Burgess, I.F. and Williamson, E.M. (2006) Lethality of essential oil constituents towards the human louse, Pediculus humanus, and its eggs. Fitoterapia, 77 (4). pp. 303-309. ISSN 0367-326X doi: https://doi.org/10.1016/j.fitote.2006.04.005

Weston, S. E., Williamson, E. M., Constanti, A., Stephens, G. J. ORCID: https://orcid.org/0000-0002-8966-4238 and Whalley, B. J. (2006) Tetrahydrocannabivarin exhibits anticonvulsant effects in a piriform cortical brain slice model of epileptiform activity. In: British Pharmacological Society Winter Meeting 2006.

Barnes, J., Barber, N., Wheatley, D. and Williamson, E.M. (2006) A pilot randomised, open, uncontrolled, clinical study of two dosages of St John's wort (Hypericum perforatum) herb extract (LI-160) as an aid to motivational/behavioural support in smoking cessation. Planta Medica, 72 (4). pp. 378-382. ISSN 0032-0943 doi: https://doi.org/10.1055/s-2005-916219

Elsabagh, S., Hartley, D.E., Ali, O., Williamson, E.M. and File, S.E. (2005) Differential cognitive effects of Ginkgo biloba after acute and chronic treatment in healthy young volunteers. Psychopharmacology, 179 (2). pp. 437-446. ISSN 0033-3158 doi: https://doi.org/10.1007/s00213-005-2206-6

Williamson, E.M. (2005) Interactions between herbal and conventional medicines. Expert Opinion on Drug Safety, 4 (2). pp. 355-378. ISSN 1474-0338 doi: https://doi.org/10.1517/14740338.4.2.355

Smith, E., Williamson, E.M., Zloh, M. and Gibbons, S. (2005) Isopimaric acid from Pinus nigra shows activity against multidrug-resistant and EMRSA strains of Staphylococcus aureus. Phytotherapy Research, 19 (6). pp. 538-542. ISSN 0951-418X doi: https://doi.org/10.1002/ptr.1711

Whalley, B. J., Wilkinson, J. D., Williamson, E. M. and Constanti, A. (2004) A novel component of cannabis extract potentiates excitatory synaptic transmission in rat olfactory cortex in vitro. Neuroscience Letters, 365 (1). pp. 58-63. ISSN 0304-3940 doi: https://doi.org/10.1016/j.neulet.2004.04.044