Congenital duodenal web causing partial obstruction with recurrent vomiting and abdominal distention in a toddler boy: a case report.

Background: The duodenal web is a thin, elongated, web-like structure that is one of the factors contributing to duodenal obstruction. Only 100 cases have been reported in the literature. We present a 2.

The stereoselective synthesis of cis-/trans-fused hexahydropyrano[4,3-b]chromenes via Prins cyclization trapping by a tethered nucleophile.

A novel intramolecular Prins cyclization of (Z)-2-(5-hydroxypent-2-enyl)phenol with various aldehydes has been achieved using 10 mol% In(OTf)(3) and 30 mol% TsOH to produce the cis-fused hexahydropyrano[4,3-b]chromene derivatives in good yields, while the coupling of (E)-2-(5-hydroxypent-2-enyl)phenol with aldehydes under similar conditions affords the corresponding trans-fused hexahydropyrano[4,3-b]chromene derivatives.

Mental health care reform in Afghanistan.

The mental health situation in Afghanistan is characterized by a highly felt need and an extremely incapacitated mental health care system. The new Afghan government has identified mental health as one of five health priorities. Integration of mental health into the basic health care services of Afghanistan could substantially increase the effectiveness of mental health services.