18 Oct 2019
// BIOSPACE
https://www.biospace.com/article/releases/arena-pharmaceuticals-presence-at-united-european-gastroenterology-week-bolsters-commitment-to-the-gastrointestinal-disease-community/?s=95
08 Mar 2019
// PR NEWSWIRE
https://www.prnewswire.com/news-releases/arena-pharmaceuticals-presented-new-phase-2-data-for-etrasimod-and-olorinab-at-the-14th-congress-of-european-crohns-and-colitis-organisation-300808996.html
16 Nov 2018
// ENDPTS
https://endpts.com/united-therapeutics-pays-800m-plus-to-grab-arenas-phiii-pah-drug/
https://www.reuters.com/article/us-arena-pharma-utd-therapeut/united-therapeutics-to-develop-sell-arena-pharmas-hypertension-treatment-idUSKCN1NK1Q2
25 Sep 2018
// Phil Taylor FIERCE BIOTECH
https://www.fiercebiotech.com/biotech/arena-three-for-three-as-crohn-s-drug-meets-proof-concept-test
29 Aug 2018
// PR NEWSWIRE
https://www.prnewswire.com/news-releases/arena-pharmaceuticals-presented-phase-1-clinical-data-for-ralinepag-in-pulmonary-arterial-hypertension-at-the-european-society-of-cardiology-300703538.html