Potassium values in women taking the oral contraceptive YAZ® (drospirenone 3 mg/ee 20 mcg 24/4 regimen) concomitantly with medications that may increase serum potassium - Bachmann, G.A.; Lynen, R.F.; Recchia, T.A.; Trummer, D.; Korner, P. (Fertility & Sterility, 2008)