Fig9C. of [doi:10.1359/jbmr.2001.16.6.1136] Deng W; Stashenko P; Chen W; Liang Y; Shimizu K; Li YP. 2001 "Characterization of Mouse Atp6i Gene, the Gene Promoter, and the Gene Expression" J Bone Miner Res 16(6):1136-46 [PMID:11393791] .