(a) Only the formulation of conclusions 1-23, based on the studies referred to in paragraphs (a)-(c) above, have been so far provisionally agreed to by the Study Group;
第1-23项结论是根据上文(a)-(c)段所指的研究报告拟定的，到目前为止只有这些结论是研究组达成一致意见的。