..............page:597-598
..............page:599-602
..............page:603-609
..............page:691-692
..............page:683-690
..............page:672-682
..............page:643-650
..............page:637-642
..............page:622-636
generation of pancreatic islet cells from human embryonic stem cells
zhang donghui1;2;jiang wei1;shi yan2 & deng hongkui1;2 1 key laboratory of cell proliferation and differentiation of the ministry of education;college of life sciences;peking university;beijing 100871;china;2 laboratory of chemical genomics;shenzhen graduate school of peking university;shenzhen 518055;china
..............page:615-621
..............page:610-614
..............page:665-671
effects of chemical activation and season on birth efficiency of cloned pigs
ma yufang1;2;li yan3;wei hengxi1;li qiuyan3;fang rui1;zhao rui3;zhang kun1;xue kai1;lou yankun1;dai yunping3;lian linsheng2 & li ning1 1 state key laboratory of agrobiotechnology;college of biological sciences;china agricultural university;beijing 100193;china;2 college of animal science and technology;china agricultural university;beijing 100193;china;3 beijing genprotein biotechnology company;beijing 100193;china
..............page:657-664
..............page:651-656