Academy of Mathematics and Systems Science, Chinese Academy of Sciences, and School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, China.|Biodynamic Optical Imaging Center, Peking University, Beijing, China.|Department of Genetics, Eötvös Loránd University, Budapest.|Institute of Food Research and the Earlham Institute, Norwich, UK.|Department of Medical Chemistry, Semmelweis University, Budapest, Hungary.|Academy of Mathematics and Systems Science, Chinese Academy of Sciences, and School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, China.