In this task, you will be given sentences in which you have to recognize the name of the body cells. A cell is a mass of cytoplasm that is bound externally by a cell membrane. Usually microscopic in size, cells are the smallest structural units of living matter and compose all living things. Although there might be several correct answers, you need to write one of them. 
 input :  Sickle cell disease : continuous arterial spin - labeling perfusion MR imaging in children .
keywords:forbidden_words change_case:english_lowercase detectable_format:number_highlighted_sections length_constraints:number_words startend:quotation length_constraints:number_paragraphs keywords:frequency
health
at least
less than
relationships
The words health cannot be in the response All letters in your response must be lower case letters Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section* Keep your entire response at least 13 words or less. Your answer need to be wrapped in double quotes Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with *** Mention the word "relationships" for less than 2 times