COLUMBIA, Md.--(BUSINESS WIRE)--CELSION CORPORATION (AMEX:CLN) today announced the closing of the previously announced sale of its Prolieve assets to Boston Scientific. Boston Scientific will pay Celsion $60 million for the Prolieve assets in three installments, $30 million at closing and $15 million to be paid on each of the first and second anniversaries of the closing. Celsion repaid the principal and accrued interest on a $15 million promissory note due to Boston Scientific at closing.