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Mann KG, Williams EB, Krishnaswamy S, Church W, Giles A, Tracy RP.Mann KG, et al. Among authors: tracy rp.Blood. 1990 Aug 15;76(4):755-66.Blood. 1990.PMID: 2116928Free article.
Lawler CM, Bovill EG, Stump DC, Collen DJ, Mann KG, Tracy RP.Lawler CM, et al. Among authors: tracy rp.Blood. 1990 Oct 1;76(7):1341-8.Blood. 1990.PMID: 2119827Free article.