Sticks used as walking aids. The canes may have three or four prongs at the end of
the shaft.
http://www.has-sante.fr/portail/display.jsp?id=c_601594 http://www.has-sante.fr/portail/display.jsp?id=c_601595 2007 France French canes crutches health technology assessment
--- https://www.santepubliquefrance.fr/recherche/#search=Evaluation+de+l'impact+sanitaire+de+la+pollution+atmosphérique+urbaine+-+Agglomérations+de+Cannes+et+de+Nice 2007 France technical report health impact assessment canes air pollution