Kasper, D. L., Fauci,Anthony S,Ed, Hauser,Stephen L,Ed, & Longo,Dan L,Ed. (2015). Harrison's principles of internal medicine,Vol.I (19th ed.). McGraw Hill.

Kasper, Dennis L.,Ed, Fauci,Anthony S,Ed, Hauser,Stephen L,Ed, and Longo,Dan L,Ed. Harrison's Principles of Internal Medicine,Vol.I. 19th ed. Chennai: McGraw Hill, 2015.

Kasper, Dennis L.,Ed, et al. Harrison's Principles of Internal Medicine,Vol.I. 19th ed. McGraw Hill, 2015.