The Global Top 100 ranking in the Nature Publishing Index (www.natureasia.com/en/publishing-index/global) does an injustice to transnational institutions by not taking into account all contributions when listing their publication output.

For example, you rank Germany's Max Planck Institutes in third position. But the Max Planck Institutes in the Netherlands, the United States and Italy are full members of the same research organization. Including these would push the Max Planck Institutes up in your rankings (our institute in the Netherlands, for instance, would have added three Nature papers to your 2011 tally).