Insufficient funds <a href=" http://www.shearsbybath.co.uk/obat-nexium-esomeprazole-20-mg.pdf#squadron ">nexium caps 20mg</a> In 1489, Leonardo was still in his thirties, a brilliant painter who, in the years that followed, also undertook miscellaneous work for Ludovico, such as building canals. He executed a series of breathtaking studies of a human skull that presented every bony bump, nodule and cranial kink with such crystal-clear precision that they must have been based upon direct observation. But he didn&rsquo;t have sufficient clout to secure access to the corpses he needed to take his studies further.