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Preston TW.Preston TW.Br Med J. 1974 Oct 26;4(5938):233. doi: 10.1136/bmj.4.5938.233-b.Br Med J. 1974.PMID: 4420056Free PMC article.No abstract available.
PRESTON TW.PRESTON TW.Postgrad Med J. 1946 Dec;22(254):405-8. doi: 10.1136/pgmj.22.254.405.Postgrad Med J. 1946.PMID: 20287294Free PMC article.No abstract available.