APA (7th ed.) Citation

Stephen A. Geller & Fernando Peixoto Ferraz de Campos. (2013). Esophageal involvement in progressive systemic sclerosis. University of São Paulo.

Chicago Style (17th ed.) Citation

Stephen A. Geller and Fernando Peixoto Ferraz de Campos. Esophageal Involvement in Progressive Systemic Sclerosis. University of São Paulo, 2013.

MLA (9th ed.) Citation

Stephen A. Geller and Fernando Peixoto Ferraz de Campos. Esophageal Involvement in Progressive Systemic Sclerosis. University of São Paulo, 2013.

Warning: These citations may not always be 100% accurate.