Dyfyniad APA

Hersh, C., Dahl, M., Ly, N., Berkey, C., Nordestgaard, B., & Silverman, E. (2004). Chronic obstructive pulmonary disease in α(1)-antitrypsin PI MZ heterozygotes: A meta-analysis. BMJ Group.

Dyfyniad Arddull Chicago

Hersh, C., M. Dahl, N. Ly, C. Berkey, B. Nordestgaard, and E. Silverman. Chronic Obstructive Pulmonary Disease in α(1)-antitrypsin PI MZ Heterozygotes: A Meta-analysis. BMJ Group, 2004.

Dyfyniad MLA

Hersh, C., et al. Chronic Obstructive Pulmonary Disease in α(1)-antitrypsin PI MZ Heterozygotes: A Meta-analysis. BMJ Group, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.