Fig. 4From: Knowledge mapping of programmed cell death in osteonecrosis of femoral head: a bibliometric analysis (2000–2022)Visualization of journals (A) and cocited journals (B) on research of PCD in ONFH. Note: The color of the circles represents different clusters, the number of circles represents the number of the analyzed journals, and the size of the circles represents the number of articles published in each journalBack to article page