ISRCTN58328599 (http://www.controlled-trials.com).

No abstract

Abstract. This article estimates the effect of Spanish regional trade agencies abroad on exports using the gravity model. The results indicate that regional agencies increase trade. The estimated impact seems to be larger than that of Spanish embassies and consulates. Moreover, a disaggregated analysis shows that this effect is not evenly distributed across Spanish regions. JEL classification: F14, R12

In patients without risk factors, division of the EAS during fistulotomy limited to the lower two thirds of the EAS is associated with excellent continence and cure rates.