stries on the annual 2001 Fortune 500 list, with the top ten Fortune 500 drug companies earning $37.2 billion in profits in 2001, up from $28.0 billion reported in 2000.<br>
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                <span class="subheadergray">History of Patient Assistance Programs</span> <br>
                 Through their patient assistance programs (PAPs), many drug manufacturers claim to offer free medication to low-income individuals who do not have public or private presc