Related by context. Frequent words. (Click for all words.) 61 cornea 60 tissue 60 prostate tissue 60 retinal cells 60 diseased tissue 59 corneas 58 stem cells 57 corneal 56 metastatic tumors 55 allografts 54 bone marrow stem cells 54 tissues 54 corneal transplants 53 retina 53 optic nerves 53 hematopoietic stem cells 53 diseased cells 52 pancreatic cells 52 cancerous tissue 52 vasculature 52 photoreceptors 52 cell transplantation 52 intraocular lenses 52 epithelium 52 Adult stem cells 51 IOLs 51 islet cells 51 retinal 51 cancerous cells 51 tumors 51 blood vessels 51 hair follicles 50 neural stem cells 50 photoreceptor 50 nanospheres 50 microspheres 50 mesenchymal stem cells 50 hepatocytes 49 autologous 49 retinas 49 tumor cells 49 chondrocytes 49 keratinocytes 49 optic nerve 49 cornea transplants 49 follicles 49 cultured cells 49 bone grafts 49 implant 49 cancerous tumors 49 exosomes 49 lung tumors 49 HSCs 49 hESCs 49 vitreous 49 adult stem cells 49 femtosecond laser 49 grafts 48 fallopian tube 48 ex vivo 48 fluorescent dye 48 dermis 48 mucosa 48 endometrium 48 zebrafish 48 fibroblasts 48 endothelial cell 48 lymphatic vessels 48 surgically 48 retinal degeneration 47 pulmonary valve 47 progenitor cell 47 kidneys 47 progenitor cells 47 myocardium 47 germ cells 47 hair follicle 47 cells 47 zebra fish 47 intraocular pressure 47 muscle tissue 47 malignant cells 47 Retinal 47 ovary 47 nerve cells 47 corneal transplant 47 bone marrow 47 hydrogel 47 thymus gland 47 uterine lining 47 allograft 47 oocyte 47 diseased 46 nerve regeneration 46 breast tissue 46 cartilage 46 hematopoietic stem cell 46 precancerous cells 46 capillaries 46 epithelial cells 46 leukemic cells