Gov. M. Jodi Rell has reversed a contentious plan that required doctors and hospitals wanting to participate in Connecticut's insurance program for children to join her new program for uninsured adults. Rell acknowledged that the network of healthcare providers has not yet grown large enough to handle all the patients. That has been a sticking point for many Democrats in the General Assembly, activists for the poor and uninsured, and most of the state's congressional delegation. They worry that linking the state's two insurance programs would risk healthcare services to needy children.