Treatment of Perianal Abscess and Fistula in Infants and Young Children: From Basic Etiology to Clinical Features.

Perianal abscess and anal fistula are 2 common anorectal diseases in infants and young children. However, their causes, clinical diagnosis, and treatment remain controversial. Compared to adults, infants with these 2 diseases exhibit unique clinical characteristics.

[FTIR spectroscopic study on synthesis and adsorption performance of amino phosphonic acid chelating fiber].

During the preparation of amino phosphoric chelating fiber, polypropylene grafted styrene, acetyl, amine series and amino phosphonic acid chelating fibers were certified by infrared spectrum, and the functionalization degree of raw fibers was studied. By the semi-qualitative method of infrared spectrum, the adsorption performance of indium and copper on amino phosphonic chelating fiber was also discussed. The results showed that (1) The peak at 1 116 cm(-1) was assigned to--P(ONa)2 in amino phosphonic acid chelating fiber.