APA Citation

Witte, T. N., & Enns, R. (2007). The difficult colonoscopy. Pulsus Group Inc.

Citação norma Chicago

Witte, Todd N., and Robert Enns. The Difficult Colonoscopy. Pulsus Group Inc, 2007.

MLA Citation

Witte, Todd N., and Robert Enns. The Difficult Colonoscopy. Pulsus Group Inc, 2007.

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