[lemma=a] □
[lemma=a] [□]
[lemma=a] □*
A properly holistic one may lobby for a sanitary sewer system and a ban on leaded gasoline . Conclusory assertions are , however , insufficient to defeat a properly supported motion for summary judgment . A properly engineered virus can have an amazing effect on the worldwide Internet . Despite the difficulties inherent in evaluating a growing number of different surgical procedures , it was agreed that clinical trials of the most promising new techniques and improvements of existing procedures should be encouraged , so long as they are theoretically well-grounded , tested in animal models , when appropriate , and adhere to carefully thought-out protocols previously approved by a properly constituted institutional review committee .