Italian Nobel scientist Montalcini dies at 103

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Italian neurologist Rita Levi Montalcini is seen in this 1984 file photograph. Rita Levi Montalcini, joint winner of the Nobel Prize for Medicine and an Italian Senator for Life, died on Sunday at the age of 103, her family said. The first Nobel laureate to reach 100 years of age, she won the prize in 1986 with American Stanley Cohen for their discovery of nerve growth factor (NGF), a protein that makes developing cells grow by stimulating surrounding nerve tissue. REUTERS/Stringer/Files