TY - RPRT TI - Decrease in helper (T4+) lymphocytes following cimetidine treatment for duodenal ulcer. AU - R Hast AU - P Bernell AU - R Befrits AU - C Dowding AU - A M Sjögren PY - 1986 UR - https://pubmed.ncbi.nlm.nih.gov/2942318/ ID - 2942318 ER -