Alexander, S. P., Battey, J., Benson, H. E., Benya, R. V., Bonner, T. I., Davenport, A. P., Dhanachandra Singh, K., Eguchi, S., Harmar, A., Holliday, N., Jensen, R. T., Karnik, S., Kostenis, E., Liew, W. C., Monaghan, A. E., Mpamhanga, C., Neubig, R., Pawson, A. J., Pin, J.-P., Sharman, J. L., Spedding, M., Spindel, E., Stoddart, L., Storjohann, L., Thomas, W. G., Tirupula, K. and Vanderheyden, P. (2022) “Class A Orphans in GtoPdb v.2022.3”, IUPHAR/BPS Guide to Pharmacology CITE, 2022(3). doi: 10.2218/gtopdb/F16/2022.3.