"L (Langerhans) group"
"Langerhans cell histiocytosis"
"Langerhans cell"
Expected headings
"Classification"
"L (Langerhans) group"
"C group: cutaneous and mucocutaneous non-Langerhans cell histiocytoses"
"M group: malignant histiocytoses"
"R group: Rosai-Dorfman disease and miscellaneous noncutaneous, non-Langerhans cell histiocytoses"
"H group: haemophagocytic lymphohistiocytosis and macrophage activation syndrome"