Morphometric study of salivary glands in primary Sjögren's syndrome.
Salivary gland scintigraphy in Sjogren's syndrome and patients with sicca symptoms but without Sjogren's syndrome: the psychological profiles and predictors for salivary gland dysfunction
Due to symbiotic N2 fixation, five years of elevated atmospheric pCO2 had no effect on the N concentration of plant litter in fertile, mixed grassland