...causation available. This philosophy was appropriately expressed by Sir AB Hill ( 1962) when he wrote : "All scientific work is incomplete — whether it...action that it appears to demand at a given time." The lessons of the past in general health and safety practices are easy to read. They are characterized...

...subject to modification through advances in research. But these truths cannot be used as an excuse to ignore the knowledge we already have or to postpone the action that such knowledge appears to demand at a given time. Reversing the tide of environmental pollution will...

...subject to modification through advances in research. But these truths cannot be used as an excuse to ignore the knowledge we already have or to postpone the action that such knowledge appears to demand at a given time. Reversing the tide of environmental pollution will...

...for lead free gasoline, and lead-free lungs.7 C. Several decisive actions are required without delay All scientific work is incomplete — whether it be...the action that it appears to demand at a given time (Hill, 1965). At best, knowledge of the scientific and medical realities of atmospheric lead pollution...

...causation available. This philosophy was appropriately expressed by Sir AB Hill (1962) when he wrote: "All scientific work is incomplete — whether it...action that it appears to demand at a given time." The lessons of the past in general health and safety practices are easy to read. They are characterized...

...would, however, repeat emphatically that this does not imply crossing every V and swords with ever)' critic before we act. "All scientific work is incomplete...action that it appears to demand at a given time."* These quotations provide satisfying support of my view of our obligation to study and subsequently...

...repeat emphatically that this does not imply crossing every V and swords with every critic l>efore we act. "All scientific work is incomplete — whether...action that it appears to demand at a given time."* These quotations provide satisfying support of my view of our obligation to study and subsequently...

...'t' and swords with every critic before we act. "All scientific work is incomplete — whether ¡t be observational or experimental. All scientific work...action that it appears to demand at a given time."* These quotations provide satisfying support of my view of our obligation to study and subsequently...

...liable to be upset or modified by advancing knowledge. That does not confer upon us freedom to lower the knowledge we already have, or to postpone the action that it appears to demand at a given time. The lessons of the past in general health and safety practices are easy to read. They are characterized...

...or experimental. All scientific work is liable to be upset or modified by advancing knowledge. This does not confer upon us a freedom to ignore the knowledge...given time. Who knows, asked Robert Browning, but that the world may end tonight? True, but on available evidence most of us make ready to commute on...