APA (7th ed.) Citation

Gao, L., Yao, T., Ge, S., Cui, J., Li, W., Guo, Z., . . . Group, T. I. o. N. S. a. i. C. O. o. C. C. Effect of comorbidity classes on survival of patients with gastrointestinal tract cancer. BMC.

Chicago Style (17th ed.) Citation

Gao, Linna, et al. Effect of Comorbidity Classes on Survival of Patients with Gastrointestinal Tract Cancer. BMC.

MLA (9th ed.) Citation

Gao, Linna, et al. Effect of Comorbidity Classes on Survival of Patients with Gastrointestinal Tract Cancer. BMC.

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