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Schumacher GE, Barr JT.Schumacher GE, et al. Among authors: barr jt.Ther Drug Monit. 1998 Oct;20(5):539-42. doi: 10.1097/00007691-199810000-00016.Ther Drug Monit. 1998.PMID: 9780132Review.
Schumacher GE, Barr JT.Schumacher GE, et al. Among authors: barr jt.Ther Drug Monit. 1989 Sep;11(5):580-4.Ther Drug Monit. 1989.PMID: 2683252Review.No abstract available.