APA

Lawrance I. C., Murray K., Batman B., Gearry R. B., Grafton R., Krishnaprasad K., Andrews J. M., Prosser R., Bampton P. A., Cooke S. E., Mahy G., Radford-Smith G., Croft A. & Hanigan K. (20140714). Crohn's disease and smoking: is it ever too late to quit?. : Journal of Crohn's & colitis.

Chicago

Lawrance Ian C, Murray Kevin, Batman Birol, Gearry Richard B, Grafton Rachel, Krishnaprasad Krupa, Andrews Jane M, Prosser Ruth, Bampton Peter A, Cooke Sharon E, Mahy Gillian, Radford-Smith Graham, Croft Anthony and Hanigan Katherine. 20140714. Crohn's disease and smoking: is it ever too late to quit?. : Journal of Crohn's & colitis.

Harvard

Lawrance I. C., Murray K., Batman B., Gearry R. B., Grafton R., Krishnaprasad K., Andrews J. M., Prosser R., Bampton P. A., Cooke S. E., Mahy G., Radford-Smith G., Croft A. and Hanigan K. (20140714). Crohn's disease and smoking: is it ever too late to quit?. : Journal of Crohn's & colitis.

MLA

Lawrance Ian C, Murray Kevin, Batman Birol, Gearry Richard B, Grafton Rachel, Krishnaprasad Krupa, Andrews Jane M, Prosser Ruth, Bampton Peter A, Cooke Sharon E, Mahy Gillian, Radford-Smith Graham, Croft Anthony and Hanigan Katherine. Crohn's disease and smoking: is it ever too late to quit?. : Journal of Crohn's & colitis. 20140714.