00326nam a22001457a 4500003000400000020001700004082001400021100001500035245003300050250000900083260002900092300000800121650002100129653003000150SGT  a978819056810  a617bM21D  aDas, Somen  aA Manual on Clinical Surgery  a15th  bS. D. Publicationsc2021  a648  aClinical Surgery  aClinical Surgery; Surgery