High levels of all-cause mortality among people who inject drugs in Greece in 2018–2022 - Rousssos, Sotirios; Angelopoulos, Theodoros; Cholongitas, Evangelos; Savvanis, Spyridon; Papadopoulos, Nikolaos; Kapatais, Andreas; Hounta, Athina; Ioannidou, Panagiota; Deutsch, Melani; Manolakopoulos, Spilios; others (medRxiv, 2022)