00402nam a2200133Ia 4500003000400000008004100004020001500045040000800060110003000068245009700098260002400195300001000219440003900229LDD181029s9999    xx            000 0 und d  a9241571446  cLDD  aWorld health organization 0aPrincipals for evaluating chemical effects on the aged populationcWorld health organization  aGenevabW.H.Oc1993  a159p.  aEnvironmental health criteriav144