Session 21 (Geneva, 10 January 2018)	21	2018-01-10
Session 22 (Web conference, 13 March 2018)	22	2018-03-13
Session 23 (Web conference, 9 April 2018)	23	2018-04-09
Session 24 (Geneva, 6 June 2018)	24	2018-06-06
Session 25 (Web conference, 6 September 2018)	25	2018-09-06