Nucleotide

• Single Parent
  Single Parent

  A natural, adoptive, or substitute parent of a dependent child, who lives with only one parent. The single parent may live with or visit the child. The concept includes the ne...<br/>Year introduced: 1989
  MeSH
• Widowhood
  Widowhood

  The state of having lost a marital partner by death.<br/>Year introduced: 1994
  MeSH

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