Paris (CNN) -- Yasser Arafat's widow on Tuesday questioned the findings of French scientists that the Palestinian leader did not die from radioactive polonium poisoning but rather from natural causes. 

The conclusion, leaked to multiple French media agencies and Reuters, contradicts the findings of Swiss forensic scientists who concluded last month that samples taken from Arafat's exhumed body were consistent with polonium-210 exposure but did not definitely prove that he was poisoned. 

"I'm convinced there is something wrong, and he did not die from a natural death," Suha Arafat said at a news conference in Paris. 

She said she is requesting that the Swiss findings be made available to French authorities investigating her husband's death. She said the medical experts in Switzerland and France came from different medical fields. 

"I don't doubt them. But they are different skills. They are different types of medicines," she said. 

The French findings will do little to quell the rumors that Arafat was poisoned. 

Arafat died at age 75 at a Paris military hospital in November 2004 after he had a brain hemorrhage and slipped into a coma. Palestinian officials said in the days before his death that Arafat had a blood disorder -- though they ruled out leukemia -- and that he had digestive problems. 

Rumors of poisoning circulated at the time, but Palestinian officials denied them. 

Two weeks after Arafat's death, his nephew said medical records showed no cause of death. Nasser al-Kidwa, who was the Palestinian observer to the United Nations, said toxicology tests showed "no known poison," though he refused to exclude the possibility that poison caused his uncle's death. 
Who is his nephew?
Two weeks after Arafat's death, his nephew said medical records showed no cause of death. Nasser al-Kidwa, w