kee Pluriel
Wirksamkeit Wirkungskraft
efficacité
effectiveness
eficácia eficiência
d' Effikassitéit 1 vum Medikament ass net bewisen
https://lod.lu/uploads/examples/OGG/0c/0c1c4c0712719063ee55d675bd019958.ogg
https://lod.lu/uploads/examples/AAC/0c/0c1c4c0712719063ee55d675bd019958.m4a