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A Note on Twins     
《American anthropologist》1921,23(3):387-388
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F. B. Bowman 《CMAJ》1963,89(23):1200
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A modification of the Gram stain in which iodine-alcohol is substituted for 95% alcohol as a decolorizing agent has been found particularly useful in staining Gram-positive organisms in tissues and also for smears. The technic for tissue sections follows:
  1. Apply nuclear stain.
  2. Wash.
  3. Stain in Hucker's gentian violet 2 to 3 minutes (i. e. 1 part Sat. Alc. Sol. crystal violet to 4 parts 1% Aqu. Sol. ammonium oxalte).
  4. Wash in water.
  5. Stain in Gram's iodine 5 minutes.
  6. Wash in water.
  7. Decolorize in 95% alcohol to which enough tincture of iodine has been added to give a mahogany color.
  8. Counterstain.
  9. Dehydrate and mount.
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