Systems medicine is an interdisciplinary field of study that looks at the systems of the human body as part of an integrated whole, incorporating biochemical, physiological, and environment interactions. Systems medicine draws on systems science and systems biology, and considers complex interactions within the human body in light of a patient's genomics, behavior and environment. The earliest uses of the term systems medicine appeared in 1992, in an article on systems medicine and pharmacology by B.J. Zeng and in a paper on systems biomedicine by T. Kamada.