Key term: prospective data

Original article 2002;28(1):12-17   pdf
Risk factors for cardiovascular malformation - a study based on prospectively collected data
Cedergren MI, Selbing AJ, Källén BAJ
 
Original article 1998;24(5):344-350   pdf
Job strain and time to pregnancy
Hjollund NHI, Kold Jensen T, Bonde JPE, Henriksen TB, Kolstad HA, Andersson A-M, Ernst E, Giwercman A, Skakkebæk NE, Olsen J