1 State Secretariat for Economic Affairs, Holzikofenweg 36, CH-3003, Bern, Switzerland. Electronic address: olivier.sanvido@seco.admin.ch.
2 State Secretariat for Economic Affairs, Holzikofenweg 36, CH-3003, Bern, Switzerland. Electronic address: kaspar.schmid@seco.admin.ch.
3 University of Basel, Swiss Centre for Applied Human Toxicology, Missionsstrasse 64, CH-4055, Basel, Switzerland. Electronic address: rex.fitzgerald@scaht.org.
4 University of Basel, Swiss Centre for Applied Human Toxicology, Missionsstrasse 64, CH-4055, Basel, Switzerland. Electronic address: nicolas.roth@unibas.ch.
5 University of Basel, Swiss Centre for Applied Human Toxicology, Missionsstrasse 64, CH-4055, Basel, Switzerland. Electronic address: martin.wilks@scaht.org.
6 Federal Office for Agriculture, Schwarzenburgstrasse 165, CH-3003, Bern, Switzerland. Electronic address: peter.bormann@blw.admin.ch.
7 University of Lausanne, Institute for Work and Health (IST), Route de la Corniche 2, CH-1066, Epalinges-Lausanne, Switzerland. Electronic address: Nancy.Hopf@hospvd.ch.