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2. The alpha-l-antitrypsin null gene frequency;Blundell, G.; Cole, R.B.; Nevin, N.C.,1975
3. Alpha-l-antitrypsin phenotypes in Northern Ireland;Frazer, A.; Cole, R.B.; Nevin, N.C.;Annals of Human Genetics,1975
4. College of General Practitioners;British Medical Journal; Chronic bronchitis in Great Britain,1961
5. Genetic aspects of the Pi system;Cook, P.J.L.;Postgraduate Medical Journal,1974