V. Arndt, D. Rothenbacher, U. Daniel, B. Zschenderlein, S. Schuberth, H. Brenner, Occupational and Environmental Medicine Vol. 62 Working conditions taking part in the concrete construction industry exhibit improved taking part in many urbanized countries ...

David F. Whitacre, Biotropica Vol. 13 Donald Perry’s paper describing a method on behalf of climbing safety taking part in regards to tall forest trees is approved in it’s purpose of introducing tropical biologists to ...

B.F. Ribeiro, British Medical Journal In the six months I spent in the same way as an accident official by the side of the Middlesex hospital I treated seven window cleaners who had been injured ...