{"1":{"study_id":"ST000009","study_title":"Mixed meal tolerance","institute":"University of Michigan","analysis_id":"AN000023","analysis_type":"MS","units":"Peak area","num_metabolites":"248","details":"LC\/Electro-spray \/QTOF positive ion mode","species":"Homo sapiens"},"2":{"study_id":"ST000009","study_title":"Mixed meal tolerance","institute":"University of Michigan","analysis_id":"AN000024","analysis_type":"MS","units":"Peak area","num_metabolites":"172","details":"LC\/Electro-spray \/QTOF negative ion mode","species":"Homo sapiens"}}