共 3 条
[1]
Achalasia:w hether the knife or ballon? Not such a difficult question. Richter J E. The American journal of Gastroenterology . 1991
[2]
To dilate or to operate? Th at is thequestion. Vantrappen G,Janssens J. Gut . 1983
[3]
Pneum atic ballon dilation inachalasia:a prospective com parison of ballon distention tim e. Kh an A A,Sh an S W,Alam A,et al. The American journal of Gastroenterology . 1998