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Explanation: wagen (with umlaut over the a)- literal definition from Langenscheidt's dictionary states 'weigh' with a notation 'erst waegen, dann wagen - look before you leap, think before you act'. I think the term means 'weighing' in context of a thought process. You mention it was not part of a sentence. I also think that often there are clinical trials involved with the medical industry prior to acceptance in the marketplace/FDA regulations, etc. I wonder if there could be an association with this type of context. - example 'weighing the pros and cons'.