J Clin Oncol.

Yagi Y, Kosugi K, Tanimoto T.

Randomized Phase III and Extension Studies of Naldemedine in Patients With Opioid-Induced Constipation and Cancer.

J Clin Oncol. 36:1049-1050, 2018.(Apr 1)

https://www.ncbi.nlm.nih.gov/pubmed/29406801