At least once. At present, the guiding opinions and suggestions for the key projects (outstanding youth projects and innovative group projects) of the Provincial Natural Science Fund in 2023 are being collected for the basic research platforms above the provincial level in Hubei Province. The basic research platforms include Hubei Laboratory, State Key Laboratory and Hubei Provincial Key Laboratory (at least 1 time in recent three years, and the newly recognized provincial key laboratory in 2022).