Juan Merlo, Hans Liedholm, Ulf Lindblad, Agneta Björck-Linné, Jürgen Fält, Gunnar Lindberg et al
Merlo J, Liedholm H, Lindblad U, Björck-Linné A, Fält J, Lindberg G et al.
Prescriptions with potential drug interactions dispensed at Swedish pharmacies in January 1999: cross sectional study
BMJ 2001; 323 :427
doi:10.1136/bmj.323.7310.427