Sutton KA, Black PJ, Mercer KR, Garman EF, Owen RL, Snell EH, Bernhard WA. Insights into the mechanism of X-ray-induced disulfide-bond cleavage in lysozyme crystals based on EPR, optical absorption and X-ray diffraction studies. Acta Crystallogr D Biol Crystallogr. 2013 Dec; 69(Pt 12):2381-94.