Complex sentence: Additionally, MEDLINE influences researchers in their choice of journals in which to publish: few biomedical researchers today would consider publishing in a journal not indexed by MEDLINE, because then other researchers would not find (or cite) their work.
Split into simpler sentences: Additionally, MEDLINE influences researchers in their choice of journals in which to publish. Few biomedical researchers today would consider publishing in a journal not indexed by MEDLINE, because then other researchers would not find (or cite) their work.