the structure of the basement membrane of the high endothelium of reactive human lymph nodes was investigated by techniques selective for carbohydrates ( periodic acid-schiff ; critical electrolyte concentration staining with alcian blue ; lectin histochemistry ) , specific proteins ( immunohistochemistry for laminin and fibronectin ) and by conventional techniques of light and transmission electron microscopy .
C0023206
lectin
C0033684
proteins