Team of Mathematical Biology (TIMB), TIMC, Faculty of Medicine, F38706 La Tronche, France.|Team of Mathematical Biology (TIMB), TIMC, Faculty of Medicine, F38706 La Tronche, France.|Team of Mathematical Biology (TIMB), TIMC, Faculty of Medicine, F38706 La Tronche, France.|Team of Mathematical Biology (TIMB), TIMC, Faculty of Medicine, F38706 La Tronche, France.