1 Department of Dermatology, hospices civils de Lyon, hôpital Lyon Sud, université Claude-Bernard-Lyon 1, Lyon, France.
2 Department of Dermatology, hospices civils de Lyon, groupement hospitalier Nord, université Claude-Bernard-Lyon 1, Lyon, France.
3 Faculty of Medical Sciences, Newcastle University, Newcastle, United Kingdom.
4 Department of Oncology, hospices civils de Lyon, groupement hospitalier Nord, université Claude-Bernard-Lyon 1, Lyon, France.
5 Department of Internal Medicine, hospices civils de Lyon, groupement hospitalier Nord, université Claude-Bernard-Lyon 1, Lyon, France.
6 Department of Internal Medicine, hospices civils de Lyon, groupement hospitalier Nord, université Claude-Bernard-Lyon 1, Lyon, France. Electronic address: yvan.jamilloux@chu-lyon.fr.