There is no definite etiology for puberty, but understanding multiple factors and adopting intervention measurement may contribute to lowering the morbidity.
性早熟病因复杂，对多影响因素进行干预，可降低其发病率。
2
Rheumatoid arthritis is an unknown etiology autoimmune diseases, multiple middle-aged women, the cause of the disease complicated machine, no cure for the problems.