TY - GEN AU - Hewitt,Alex W AU - Mackey,David A TI - Research: Keep PubMed running at all costs SN - 1476-4687 PY - 2013///1126 KW - International Agencies KW - economics KW - MEDLINE KW - statistics & numerical data KW - National Institutes of Health (U.S.) KW - PubMed KW - United States N1 - Publication Type: Letter UR - https://doi.org/10.1038/502303e ER -