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ER content in lymphocytes of each sample was expressed by both fmol/mg of lymphocyte cytosolic protein and fmol/micrograms of lymphocyte DNA .
 protein: ER; DNA: lymphocyte DNA; cell type: lymphocytes; protein: lymphocyte cytosolic protein
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: ER; DNA: lymphocyte DNA; cell type: lymphocytes; protein: lymphocyte cytosolic protein