This excerpt taken from the CBST 10-Q filed Nov 3, 2006.
3.14. Quorum. At all meetings of the Board of Directors, a majority of the total number of directors shall be necessary and sufficient to constitute a quorum for the transaction of business, and the act of a majority of the directors present at any meeting at which there is a quorum shall be the act of the Board of Directors, except as may be otherwise specifically permitted or provided by statute, or by the Restated Certificate of Incorporation, or by these By-Laws. If at any meeting of the Board of Directors there shall be less than a quorum present, a majority of those present may adjourn the meeting from time to time until a quorum is obtained, and no further notice thereof need be given other than by announcement at said meeting which shall be so adjourned.