1. Institute for Biomedical Ethics, University of Basel, Basel, Switzerland.
2. Département de l'Enfant et de l'Adolescent, Onco-hématologie pédiatrique, Hôpitaux Universitaires de Genève, Geneve, Switzerland.
3. Onkologie/Hämatologie, Universitäts-Kinderspital Basel, Basel, Switzerland.
4. Oncologia medica, Istituto Oncologico della Svizzera Italiana, Bellinzona, Switzerland.