Comment on

• Effect of naturally random allocation to lower low-density lipoprotein cholesterol on the risk of coronary heart disease mediated by polymorphisms in NPC1L1, HMGCR, or both: a 2 × 2 factorial Mendelian randomization study.

  Ference BA, Majeed F, Penumetcha R, Flack JM, Brook RD. Ference BA, et al. J Am Coll Cardiol. 2015 Apr 21;65(15):1552-61. doi: 10.1016/j.jacc.2015.02.020. Epub 2015 Mar 11. J Am Coll Cardiol. 2015. PMID: 25770315 Free PMC article.
• Genetic Variation in NPC1L1 and Risk of Gallstone Disease.

  Lauridsen BK, Stender S, Tybjærg-Hansen A. Lauridsen BK, et al. J Am Coll Cardiol. 2015 Sep 1;66(9):1086. doi: 10.1016/j.jacc.2015.05.076. J Am Coll Cardiol. 2015. PMID: 26314540 No abstract available.