GLAXF - GlaxoSmithKline plc 2021 Q1 - Results - Earnings Call Presentation April, 28 2021 11:20 AM GlaxoSmithKline Plc The following slide deck was published by GlaxoSmithKline plc in conjunction with their 2021 Q1 earnings call. For further details see: GlaxoSmithKline plc 2021 Q1 - Results - Earnings Call Presentation