    Sentence & Reseorchers ot Sweden .'s “Karolinska   Institute reanalyzed from more thon 2,000 infonts  who hod been t with “radiation. for a benign  birthmark condition between 1930 and,1959..    ‘Sentence 2: Reseorchers ot Sweden 's Karolinska  Institute recently went over data from more thon 2,000 .  children treated with rodiotion for a harmless birthmark  Condition between 1930 ond 1$5Q,   .    