https://www.researchgate.net/publication/315596957_Variation_in_Phytochemical_Composition_Reveals_Distinct_Divergence_of_Aloe_vera_L_Burmf_From_Other_Aloe_Species_Rationale_Behind_Selective_Preference_of_Aloe_vera_in_Nutritional_and_Therapeutic_Use
http://journals.sagepub.com/doi/full/10.1177/2156587217698292
