Johns, E., Ahmad, T., Hubbard, R., Jewell, D., & Travis, S. (2003). Combining clinical risk factors and genotype to predict postoperative recurrence of Crohn's disease.
芝加哥风格引文Johns, E., T. Ahmad, R. Hubbard, D. Jewell, 与 S. Travis. Combining Clinical Risk Factors and Genotype to Predict Postoperative Recurrence of Crohn's Disease. 2003.
MLA引文Johns, E., et al. Combining Clinical Risk Factors and Genotype to Predict Postoperative Recurrence of Crohn's Disease. 2003.
警告：这些引文格式不一定是100％准确.