For an aspiration, a syringe is attached to the needle to collect a small amount of marrow. For a bone marrow biopsy, a special needle is used that allows the collection of a solid core (a cylindrical sample) of marrow.
Lottery wheeling. Lottery wheeling (also known as lottery system, lottery wheel, lottery wheeling system) is used by individual players and syndicates to distribute a subset of the possible lottery numbers across multiple tickets to ensure that at least one of these tickets will contain a winning combination if several draws are in this subset.
To use a lottery wheel, first click on the game type above, which will take you to the page containing all the wheels available for that game type. Then, after you select a wheel, you will enter the numbers to include in the wheel, and then the wheel will be automatically created for you.