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Cockburn, W. Chas ,  Hobson, B ,  Lightbown, J. W ,  Lyng, Jorn ,  Magrath, D ,  [The International contribution to the standardization of biological substances / W. C. Cockburn ... [et al.]. II., Biological standards and the World Health Organization 1947-1990 : general considerations]

Cockburn, W. Chas ,  Hobson, B ,  Lightbown, J. W ,  Lyng, Jorn ,  Magrath, D ,  [The International contribution to the standardization of biological substances / W. C. Cockburn ... [et al.]. II., Biological standards and the World Health Organization 1947-1990 : general considerations]