TY - JOUR JO - Family Medicine & Primary Care Review SN - 1734-3402 VL - 22 IS - 4 PY - 2020 ID - Mroczek2020 TI - Preface AU - Mroczek, Bożena SP - 272 EP - 272 DA - 2020 UR - https://www.termedia.pl/Preface,95,42785,1,1.html ER -