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' - Is si'/ a round the acinus lumen. Serous demilunes are not evident. x6,000. b. Electron micrograph of the sublingual gland prepared by traditional fixation in formaldehyde. Note the considerable expansion and coalescence of the mucinogen granules and the formation of a serous demilune, x 15,000. (Courtesy of Dr. Shohei Yamashina.)

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