The present study describes a perfected device for retrograde urethrography (RUG). The device allows RUG to be performed using a balloonless catheter and with assessment of the various problems of the urethra. The procedure is simple and well tolerated by patients and represents an interesting alternative to the conventional RUG technique.

Güth and van Damme's three-person bargaining experiment challenges conventional thinking about how self-interest, as well as fairness, influences behavior. Among other things, the experiment demonstrates that people care about receiving their own fair share, but care far less about how the remainder is divided among the other bargainers. The ERC model posits that, along with pecuniary gain, peo...

The management of common bile duct stones has traditionally required open laparotomy and bile duct exploration. With the advent of endoscopic and laparoscopic technology in the latter half of the last century, endoscopic retrograde cholangiopancreatography and laparoscopic common bile duct exploration has become the mainstream treatment for common bile duct stones in most medical centers around...