Selecting pH cut-offs for the safe verification of nasogastric feeding tube placement: a decision analytical modelling approach.
Melody Zhifang NiJeremy R HuddyOliver H PriestSisse OlsenLawrence D PhillipsPatrick M M BossuytGeorge B HannaPublished in: BMJ open (2017)
ISRCTN11170249; Pre-results.