The relationship between family income and number of parent perceived problems.
D000367:Age Factors; D001294:Attitude to Health; D002648:Child; D002653:Child Behavior Disorders; D003695:Delivery of Health Care; D005260:Female; D006801:Humans; D007182:Income; D008297:Male; D008605:Mental Health Services / Q000706:statistics & numerical data; D010287:Parent-Child Relations; D011203:Poverty; D011581:Psychological Tests; D012737:Sex Factors