Related by context. Frequent words. (Click for all words.) 83 tissues 64 Tissue 62 muscle tissue 62 stem cells 60 cells 60 vasculature 58 allograft 58 cartilage 58 blood vessels 57 dermis 57 fibroblasts 57 fatty tissue 57 epithelial cells 57 endothelial cells 57 adipose tissue 56 progenitor cells 55 grafts 55 soft tissues 55 breast tissue 55 islet cells 54 collagen 54 epithelial 54 bone marrow 54 cancerous cells 54 extracellular matrix 54 organs 54 cancerous tissue 54 tumor cells 54 pancreas 53 membrane 53 connective tissue 53 marrow 53 proteins 53 lymphocytes 53 cornea 53 diseased cells 53 liver 53 soft tissue 53 nerve cells 53 uterus 52 membranes 52 neural stem cells 52 malignant cells 52 epidermis 52 corneal 52 autologous 52 bone 52 internal organs 51 immune cells 51 lung tissue 51 hair follicle 51 nerve fibers 51 follicles 51 diseased 51 hair follicles 51 ovary 51 motor neurons 50 follicle 50 skeletal muscle 50 nerve endings 50 adult stem cells 50 vascular 50 ES cells 50 tissue regeneration 50 enzymes 50 embryo 49 skin 49 transplantation 49 intestines 49 ovarian tissue 49 platelets 49 scar tissue 49 capillaries 49 dermal 49 kidneys 49 oocytes 49 small intestine 49 spinal cord 49 uterine 49 corneas 49 gastrointestinal tract 49 livers 49 antibodies 49 axons 49 cerebrospinal fluid 48 transgenic mice 48 stem cell 48 myelin 48 protein 48 mammalian cells 48 amniotic fluid 48 tumor 48 prions 48 lipids 48 aorta 48 cell membrane 48 abdominal cavity 48 intestine 48 sperm 48 tissue samples 47 muscle fibers