Con, S. A., Takeuchi, H., Con-Chin, G. R., Con-Chin, V. G., Yasuda, N., & Con-Wong, R. (2009). Role of bacterial and genetic factors in gastric cancer in Costa Rica. The WJG Press and Baishideng.

Con, Sergio A., Hiroaki Takeuchi, Gil R. Con-Chin, Vicky G. Con-Chin, Nobufumi Yasuda, و Reinaldo Con-Wong. Role of Bacterial and Genetic Factors in Gastric Cancer in Costa Rica. The WJG Press and Baishideng, 2009.

Con, Sergio A., et al. Role of Bacterial and Genetic Factors in Gastric Cancer in Costa Rica. The WJG Press and Baishideng, 2009.