The printed editions are based on a small subset of manuscripts that were available in the major publishing centers of Bombay, Calcutta and elsewhere when the editions were being prepared — sometimes as few as three or four manuscripts. But these do not adequately represent the large number of manuscript versions of the "Suśruta-saṃhitā" that have survived into the modern era. These manuscripts exist in the libraries in India and abroad today. Perhaps a hundred or more versions of the text exist, and a critical edition of the "Suśruta-saṃhitā" is yet to be prepared.