Cincinnati Children's Hospital Medical Center researchers have perfected a technique they were working on more than two years ago, as reported in this story by WVXU, using pluripotent stem cells to generate functional, 3D human stomach tissue in a lab. Before they generated human intestinal tissue, now that they have made stomach tissue.
Children's says, (it creates) "an unprecedented tool for researching the development and diseases of organ central to several public health crises, ranging from cancer to diabetes."
Dr. Jim Wells, the researcher, explains the process in this video:
His research is published in Nature at this link.