__FRANK LICHTENBERG, Columbia University
   
   _[4]Pharmaceutical Knowledge-Capital Accumulation and Longevity_
   

   BARBARA FRAUMENI and SUMIYE OKUBO,
   
   Bureau of Economic Analysis
   
   _[5]R&D in the National Income and Product Accounts: 
   
   A First Look at its impact on GDP_


##</code><code>##

my (@tmp, @titles);
while (<IN>) {
  if ( my @tmp = m/\_[\d\](.+)_/g ) {
    push @titles, @tmp;
  }
}