There are distinct differences of the trends of extreme temperature variation between different regions, but the periodic variation analysis show that the inter-decadal variations are consistent.

The serotonin transporter (5-htt) gene is a promising candidate for the heritability of inter - individual variation in personality and the genetic susceptibility for various psychiatric diseases.

Conclusion Treatment factors should be taken into account in predicting the severity of apical root resorption, but root resorption appears great genetically - based inter - individual variation.