McInerney KA, Hahn KA, Hatch EE, Mikkelsen EM, Steiner AZ, Rothman KJ, Sorensen HT, Snerum TM, Wise LA. Lubricant use during intercourse and time-to-pregnancy: a prospective cohort study. BJOG. 2018 Nov;125(12):1541-8. doi: 10.1111/1471-0528.15218
Aranda E, Aparicio J, Alonso V, Garcia-Albeniz X, Garcia-Alfonso P, Salazar R, Valladares M, Vera R, Vieitez JM, Garcia-Carbonero R. SEOM clinical guidelines for diagnosis and treatment of metastatic colorectal cancer 2015. Clin Transl Oncol. 2015 Dec;17(12):972-81. doi: 10.1007/s12094-015-1434-4
Rodriguez A, Garcia-Esteban R, Basterretxea M, Lertxundi A, Rodriguez‐Bernal C, Iniguez C, Rodriguez‐Dehli C, Tardon A, Espada M, Sunyer J, Morales E. Associations of maternal circulating 25-hydroxyvitamin D3 concentration with pregnancy and birth outcomes. BJOG. 2015 Nov;122(12):1695-704. doi: 10.1111/1471-0528.13074
Heintz E, Brodtkorb T, Nelson N, Levin LA. The long-term cost-effectiveness of fetal monitoring during labour: a comparison of cardiotocography complemented with ST analysis versus cardiotocography alone. BJOG. 2008;115(13):1676-87.
Clarkson TB, Anthony MS, Klein KP. Hormone replacement therapy and coronary artery atherosclerosis: the monkey model. BJOG. 1996 May;103(Suppl 13):53-7.