TY - STAND AU - A. Matthews AU - S. Langan AU - I. Douglas AU - L. Smeeth AU - K. Bhaskaran BT - PLoS Med DO - 10.1371/journal.pmed.1002037 M1 - 6 PY - 2016 EP - e1002037 T2 - PLoS Med TI - Phosphodiesterase Type 5 Inhibitors and Risk of Malignant Melanoma: Matched Cohort Study Using Primary Care Data from the UK Clinical Practice Research Datalink VL - 13 SN - 1549-1277 ER -