Freire, Filipe, Maria Joao Romao, Anjos L. Macedo, Susana S. Aveiro, Brian J. Goodfellow, and Ana Luisa Carvalho. "Preliminary structural characterization of human SOUL, a haem-binding protein." Acta Crystallographica Section F-Structural Biology and Crystallization Communications. 65 (2009): 723-726.