Stomach disease utilizes a small flexible camera. The procedure does require intravenous sedation and takes about 30–45 minutes; the endoscope is inserted via the mouth and can visualize the entire swallowing tube, stomach and duodenum. The procedure also allows the physician to obtain biopsy samples. In many cases of bleeding, the surgeon can use the endoscope to treat the source of bleeding with laser, clips or other injectable drugs. Other radiological studies frequently used to assess patients with chronic stomach problems include a barium swallow, where a dye is consumed and pictures of the esophagus and stomach are obtained every few minutes.
What the Duck name of each strip is picked by the author from those suggested by the readers in the comment section of the comic. The author approves of and even encourages people spreading the strips on the web. The comic strips have also been published in two books, "What the Duck, Rule of Nerds" and "What the Duck: A W.T. Duck Collection". "What the Duck" merchandise is available through the official website. What the Duck What the Duck is a comic strip by Aaron Johnson that was produced from 2006 to 2016. It started as a webcomic, with the first strip posted