[1] SILAB Inc, East Brunswick, NJ USA
[2] SILAB Inc, R&D Dept, Brive, France
[3] Univ Laval, CHU Quebec, Ctr Rech, Quebec City, PQ, Canada
[4] Univ Laval, Ctr Rech Organogenese Expt, Quebec City, PQ, Canada
[5] Univ Laval, Fac Med, Quebec City, PQ, Canada