title: [A new series: scientific theory--an important research tool if correctly used].
authors.affiliation: Institutionen för medicin, Karolinska sjukhuset, Stockholm.
authors.forename: I
authors.initials: I
authors.lastname: Krakau
authors.forename: J
authors.initials: J
authors.lastname: Calltorp
mesh_terms: D004502:Education, Medical, Continuing; D008722:Methods; D012106:Research; D012107:Research Design