Yes, we can do pair-wise, A and B, A and C, A and D, but what about A, B, C, D, E, F, G all together, being taken by the same patient, perhaps interacting with each other in ways that either makes them more effective or less effective or causes side effects that are unexpected?
Conseguimos fazer facilmente aos pares: A e B, A e C, A e D. Mas quanto a A, B, C, D, E, F, G todas juntas, tomadas pelo mesmo doente? Talvez interagindo umas com as outras de modos que as tornam mais eficazes ou menos eficazes ou provocam efeitos colaterais inesperados?