How to Use "keloid" with Example Sentences

1. Effect of pentoxifylline on proliferation of human keloid fibroblasts .
2. The role of nitric oxide in pathogenesis of keloid formation .
3. Expression of insulin-like growth factor binding proteins-3 in keloid tissues .
4. Effect of curcumin on the collagen synthesis of keloid fibroblasts .
5. Keloid problem has been the medical profession .