
// Growth Chart references are organised according to:
// - reference_name_date
//     - acknowledgement_text
//     -notes
//         -measurement `weight lenght_height, weight, ofc, bmi (all lowercase, words separated with underscore as per python standard)
//             - L : float
//             - M : float
//             - S : float
//             - decimal_age: float
//     the data are imported from microsoft .xlsx files and stored as JSON