Embedded research to advance primary health care. Issue 12 (18th December 2020) - Swaminathan, Soumya; Sheikh, Kabir; Marten, Robert; Taylor, Martin; Jhalani, Manoj; Chukwujekwu, Ogochukwu; Pearson, Luwei; Allotey, Pascale; Gough, Jean; Scherpbier, Robert W; Gupta, Anuradha; Wijnroks, Marijke; et al.