APA aipamena

Björklund, N. K., Evans, J. A., Greenberg, C. R., Seargeant, L. E., Schneider, C. E., & Chodirker, B. N. (2004). The C677T methylenetetrahydrofolate reductase variant and third trimester obstetrical complications in women with unexplained elevations of maternal serum alpha-fetoprotein. BioMed Central.

Chicago Style aipamena

Björklund, Natalie K., Jane A. Evans, Cheryl R. Greenberg, Lorne E. Seargeant, Carol E. Schneider, and Bernard N. Chodirker. The C677T Methylenetetrahydrofolate Reductase Variant and Third Trimester Obstetrical Complications in Women With Unexplained Elevations of Maternal Serum Alpha-fetoprotein. BioMed Central, 2004.

MLA aipamena

Björklund, Natalie K., et al. The C677T Methylenetetrahydrofolate Reductase Variant and Third Trimester Obstetrical Complications in Women With Unexplained Elevations of Maternal Serum Alpha-fetoprotein. BioMed Central, 2004.