Montserrat-Capdevila J, Godoy P, Marsal JR, Barbe-Illa F. Risk factors for mortality in patients with chronic obstructive pulmonary disease. Aten Primaria. 2015 Oct;47(8):498-504. doi: 10.1016/j.aprim.2014.11.004
Hahn KA, Wise LA, Rothman KJ, Mikkelsen EM, Brogly SB, Sørensen HT, Riis AH, Hatch EE. Caffeine and caffeinated beverage consumption and risk of spontaneous abortion. Hum Reprod. 2015 May;30(5):1246-55. doi: 10.1093/humrep/dev063
Wildenschild C, Riis AH, Ehrenstein V, Hatch EE, Wise LA, Rothman KJ, Sorensen HT, Mikkelsen EM. A prospective cohort study of a woman's own gestational age and her fecundability. Hum Reprod. 2015 Apr;30(4):947-56. doi: 10.1093/humrep/dev007