Consultation with an obstetrician and gastroenterologist about Crohn's disease and all medications facilitates preventative measures. His mother, Fatima, is an obstetrician and gynecologist and his father, Shoukath, is a gastroenterologist. Abnormal tissue seen in a gastroscope examination will be biopsied by the surgeon or gastroenterologist. Correct dietary advice is essential in combination with the patient's gastroenterologist and hospital-approved dietician. Alessio Fasano is an Italian-born medical doctor, pediatric gastroenterologist and researcher. Stacy Anne Kahn is a pediatric gastroenterologist at the Boston Children's Hospital. In 1934 gastroenterologist Asher Winkelstein described reflux and attributed the symptoms to stomach acid. Stanley is married to Ellen Li, a practicing gastroenterologist and active researcher. Dr. D. Nageshwara Reddy is an Indian gastroenterologist who studied at the Kurnool Medical College. Castell, a George Washington Medical School graduate, is also a Navy-trained gastroenterologist. In the summer of 2012, she worked at a hospital shadowing a gastroenterologist. Jacques Caroli, a gastroenterologist, first described a rare congenital condition in 1958 in Paris, France. The most commonly used criteria are the Castell criteria, named after American gastroenterologist D.O. Castell. Gilbert's syndrome was first described by French gastroenterologist Augustin Nicolas Gilbert and co-workers in 1901. Mario is a Harvard-educated gastroenterologist from Mexico City, while Linda is from New Orleans.