RT Journal Article SR Electronic T1 Opioid-induced constipation in intensive care – how big is the problem, and can we solve it? JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP s23 OP s23 DO 10.7861/clinmedicine.19-2-s23 VO 19 IS Suppl 2 A1 Abigail Masding A1 Sundeep Kaul YR 2019 UL http://www.rcpjournals.org/content/19/Suppl_2/s23.abstract