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Young RC Jr, Castro O, Baxter RP, Dunn R, Armstrong EM, Cook FJ, Sampson CC.Young RC Jr, et al. Among authors: castro o.J Natl Med Assoc. 1981 Jan;73(1):19-26.J Natl Med Assoc. 1981.PMID: 7463492Free PMC article.
Young RC Jr, Rachal RE, Del Pilar Aguinaga M, Nelson BL, Kim BC, Winter WP, Castro O.Young RC Jr, et al. Among authors: castro o.J Natl Med Assoc. 2000 Sep;92(9):430-5.J Natl Med Assoc. 2000.PMID: 11052456Free PMC article.
Bloch EF, Castro O, Gregory JE, Okoh C.Bloch EF, et al. Among authors: castro o.J Natl Med Assoc. 1984 Feb;76(2):179-82.J Natl Med Assoc. 1984.PMID: 6708126Free PMC article.
Duncan DE, Scott RB, Castro O.Duncan DE, et al. Among authors: castro o.J Natl Med Assoc. 1982 Oct;74(10):969-77.J Natl Med Assoc. 1982.PMID: 7143470Free PMC article.
Olopoenia L, Frederick W, Greaves W, Adams R, Addo FE, Castro O.Olopoenia L, et al. Among authors: castro o.South Med J. 1990 Sep;83(9):1002-4. doi: 10.1097/00007611-199009000-00005.South Med J. 1990.PMID: 2402640