Table 3.

Expert consensus quality evaluation (N = 3).

Items	Chinese Society for Radiation Oncology15	Chinese Society of Clinical Oncology et al.16	UKOMIC17
1. Is the opinion source clearly identified?	Yes	Yes	Yes
2. Does the opinion source have standing in the field of expertise?	Yes	Yes	Yes
3. Are the relevant population interests the central focus of the opinion?	Yes	Yes	Yes
4. Is the stated position the result of an analytical process, and is there logic in the opinion expressed?	Yes	Yes	Yes
5. Is there reference to the extant literature?	Yes	Yes	Yes
6. Is any incongruence with the literature/sources logically defended?	Yes	Yes	No
Overall evaluation	Included	Included	Included