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Sheng Yang
Yang et al

mazF as a counter-selectable marker for unmarked genetic modification of Pichia pastoris.

Yang J, Jiang W, Yang S
FEMS Yeast Res. 2009 Jun;9(4):600-9. doi: 10.1111/j.1567-1364.2009.00503.x. Epub 2009 Mar 25. (Link opens in a new window) PubMed (Link opens in a new window) Article