Du, F., Bergin, E. A., Hogerheijde, M., Van Dishoeck, E. F., Blake, G., Bruderer, S., et al. (2017). Survey of cold water lines in protoplanetary disks: indications of systematic volatile depletion. The Astrophysical Journal, 842(2): 98. doi:10.3847/1538-4357/aa70ee.