we studied the possible in vivo influence of cimetidine on peripheral blood lymphocyte ( pbl ) subpopulations defined with monoclonal antibodies ( moab ) in eight haematologically normal patients with uncomplicated duodenal ulcers before cimetidine treatment , 1 week after the start , and finally 1 week following cessation of therapy .
C0013295
duodenal ulcers
C0008783
cimetidine