1137-66271137-6627S1137-6627201900020001610.23938/assn.0714Spain0008201900082019422245248201588533-472001216405-122014712997-30252018201841211-26200781065-6201421629-38201522183-204201354334-45197633110-32007134429-34U.S. National Library of Medicine