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	1.	New 19 bp deletion polymorphism in intron-1 of dihydrofolate reductase (DHFR): a risk factor for spina bifida acting in mothers during pregnancy? [electronic resource] by Johnson, William G Stenroos, Edward S Spychala, John R Chatkupt, Sansnee Ming, Sue X Buyske, Steven Producer: 20040916 In: American journal of medical genetics. Part A vol. 124A Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Common dihydrofolate reductase 19-base pair deletion allele: a novel risk factor for preterm delivery. [electronic resource] by Johnson, William G Scholl, Theresa O Spychala, John R Buyske, Steven Stenroos, Edward S Chen, Xinhua Producer: 20050405 In: The American journal of clinical nutrition vol. 81 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Glutathione S-transferase polymorphisms and onset age in alpha-synuclein A53T mutant Parkinson's disease. [electronic resource] by Golbe, Lawrence I Di Iorio, Giuseppe Markopoulou, Katerina Athanassiadou, Aglaia Papapetropoulos, Spiridon Watts, Ray L Vance, Jeffery M Bonifati, Vincenzo Williams, Tanishia A Spychala, John R Stenroos, E Scot Johnson, Williams G Producer: 20070411 In: American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics vol. 144B Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)