Publisher
- elsevier bv1
- elsevier pub. co1
- elsevier/north-holland1
- ovid technologies (wolters kluwer health)1
- oxford university press1
- pergamon press1
- proceedings of the national academy of sciences1
- springer verlag germany:tiergartenstrasse 17, d 69121 heidelberg germany:011 49 6221 3450, email: g.braun@springer.de, internet: http://www.springer.de, fax: 011 49 6221 3452291
- wiley-liss1