| 1 | Which Weighs More in Autism Etiology: Genes or Environment? | |
| 2 | They cause gastritis, and are also the most common cause of stomach ulcers. | |
| 3 | If an unhealthy diet is the cause, a better diet can provide the answer to this problem. | |
| 4 | Knowledge about the causes of cancer, and interventions to prevent and manage the disease is extensive. | |
| 5 | The picture now emerging is of a complex condition that can be triggered by different combinations of causes. |