part of part of adjacent to adjacent to inner plexiform layer of retina substratum of layer of retina sublaminar layer S2 sublaminar layer S3 UBERON:0008924 A retinal neural layer that is immediately adjacent to the S2 and S4 layers and comprises 20 percent of the inner plexiform layer of retina. CP:0000115 sublaminar layer S4 sublaminar layers S2 or S3 sublaminar layers S3 or S4 sublaminar layers S1 or S2 or S3 sublaminar layers S2 or S3 or S4 sublaminar layers S1 or S3 or S4 sublaminar layers S3 or S4 or S5 sublaminar layers S1 or S2 or S3 or S4