Yes, that’s how you would use either … or. You don’t really need the word either unless you want to add a little emphasis. The sentence is just fine using only the word or.
Hi,
From the previous response I already know that the next sentence is incorrect because of double negative:
She has not participated neither in previous urology clinical studies nor in our studies.
…And what sounds better in English?
She has participated neither in previous urology clinical studies nor in our studies.
or
She has not participated in previous urology clinical studies or in our studies.
or maybe
She has not participated in previous urology clinical studies and in our studies.
Thank you for your comment.
Sorry for that. I was not sure if after such a long period (Sep 30, 2006 ) after the previous question, someone will look at this thread. Therefore I tried another one.