Maria Karagiannidou, Raphael Wittenberg, Filipa Isabel Trigo Landeiro, A-La Park, Andra Fry, Martin Knapp, Alastair M Gray, Antje Tockhorn-Heidenreich, Amparo Yovanna Castro Sanchez, Isaac Ghinai, Ron Handels, Pascal Lecomte, Jane Wolstenholme
BMJ Open. 2018; 8(6): e020638. Published online 2018 Jun 8. doi: 10.1136/bmjopen-2017-020638