Readers should cite both the Bio-protocol preprint and the original research article where this protocol was used:

Liu, F and Xiong, Z(2020). Gene ontology analysis, expression analysis and SNP functional annotation. Bio-protocol Preprint. bio-protocol.org/prep195.
Xiong, Z., Dankova, G., Howe, L. J., Lee, M. K., Hysi, P. G., de Jong, M. A., Zhu, G., Adhikari, K., Li, D., Li, Y., Pan, B., Feingold, E., Marazita, M. L., Shaffer, J. R., McAloney, K., Xu, S., Jin, L., Wang, S., de Vrij, F. M., Lendemeijer, B., Richmond, S., Zhurov, A., Lewis, S., Sharp, G. C., Paternoster, L., Thompson, H., Gonzalez-Jose, R., Bortolini, M. C., Canizales-Quinteros, S., Gallo, C., Poletti, G., Bedoya, G., Rothhammer, F., Uitterlinden, A. G., Ikram, M. A., Wolvius, E., Kushner, S. A., Nijsten, T. E., Palstra, R. T., Boehringer, S., Medland, S. E., Tang, K., Ruiz-Linares, A., Martin, N. G., Spector, T. D., Stergiakouli, E., Weinberg, S. M., Liu, F. and Kayser, M.(2019). Novel genetic loci affecting facial shape variation in humans. eLIFE. DOI: 10.7554/eLife.49898