D90 D91 D83 I12 I18 I21 O35
A11, A12, I15, J11, N3
I12, I18, I28
D91 - Role and Effects of Psychological, Emotional, Social, and Cognitive Factors on Decision
Making; J13 - Fertility • Family Planning • Child Care • Children • Youth; I20 – Education and Research Institutions - General
C91 Laboratory, Individual Behavior; C92 Laboratory, Group Behavior;
I31; I32; I38; C23; C26; H43; E24; J64; I12
G21; L26; O12; O16
I15, J13, J16, J81, O15
C93;D03;D21;D83;D84;J64;O17;O12
I12, I13, I15, O1