PT - JOURNAL ARTICLE AU - Deirdre T Little AU - Harvey R Ward TI - Ongoing inadequacy of quadrivalent HPV vaccine safety studies AID - 10.1136/bmjebm-2018-111122 DP - 2019 Mar 08 TA - BMJ Evidence-Based Medicine PG - bmjebm-2018-111122 4099 - http://ebm.bmj.com/content/early/2019/03/08/bmjebm-2018-111122.short 4100 - http://ebm.bmj.com/content/early/2019/03/08/bmjebm-2018-111122.full