both the use and the suffering of laboratory animals reduced this can done by encouraging the development methods that are equivalent more efficient but without unduly hindering the development of 
Both the use and the suffering of laboratory animals must be substantially reduced, and this can be done by encouraging the development of scientific methods that are equivalent or more efficient, but without unduly hindering the development of medicinal products.
Both the use and the suffering of laboratory animals reduced, this can done by encouraging the development methods that are equivalent more efficient, but without unduly hindering the development of medicinal products.