Clements, D., Aslan, S., Foster, D., Stamatakis, J., Wilkins, W. E., & Morris, J. S. (1991). Acute Upper Gastrointestinal Haemorrhage in a District General Hospital: Audit of an Agreed Management Policy. J R Coll Physicians Lond.

Clements, D., S. Aslan, D. Foster, J. Stamatakis, W. E. Wilkins, and J. S. Morris. "Acute Upper Gastrointestinal Haemorrhage in a District General Hospital: Audit of an Agreed Management Policy." J R Coll Physicians Lond 1991.

Clements, D., et al. "Acute Upper Gastrointestinal Haemorrhage in a District General Hospital: Audit of an Agreed Management Policy." J R Coll Physicians Lond 1991.