The effects of a 6-hour infusion with haloperidol on serum prolactin and luteinizing hormone ( LH ) levels was studied in a group of male subjects .
O O O O O O O B-ChemicalEntity O O B-GeneOrGeneProduct O B-GeneOrGeneProduct I-GeneOrGeneProduct O B-GeneOrGeneProduct O O O O O O O O O O O