( ( ( Impaired emptying ) ( of ( ( gastric contents ) ( through ( ( the pylorus ) ( into ( the duodenum ) ) ) ) ) ) ) ( ( can ( ( ( overwhelm ( ( the ( reservoir capacity ) ) ( of ( the stomach ) ) ) ) and ) ( worsen GER ) ) ) . ) )
(ROOT (S (NP (NP (JJ Impaired) (NN emptying)) (PP (IN of) (NP (NP (JJ gastric) (NNS contents)) (PP (IN through) (NP (NP (DT the) (NNS pylorus)) (PP (IN into) (NP (DT the) (NN duodenum)))))))) (VP (MD can) (VP (VP (VB overwhelm) (NP (NP (DT the) (NN reservoir) (NN capacity)) (PP (IN of) (NP (DT the) (NN stomach))))) (CC and) (VP (VB worsen) (NP (NNP GER))))) (. .)))
Impaired emptying of gastric contents through the pylorus into the duodenum can overwhelm the reservoir capacity of the stomach and worsen GER.
(ROOT (S (NP (JJ Gastric) (NN emptying)) (VP (VBZ is) (VP (VBN regulated) (PP (IN by) (NP (NP (PDT both) (DT the) (NN stomach)) (CC and) (NP (DT the) (NN duodenum)))))) (. .)))