Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Obergefell v. Hodges, 576 U.S. ___ (2015) ( ), is a landmark civil rights case in which the United States Supreme Court ruled that the fundamental right to marry is guaranteed to same-sex couples by both the Due Process Clause and the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution in a 54 decision. Question: Which of these cases established the idea of "informed consent" to medical procedures: Canterbury v. Spence or Obergefell v. Hodges? Answer: Canterbury v. Spence
Obergefell v. Hodges, 576 U.S. ___ 2015 , is a landmark civil rights case in which the United States Supreme Court ruled that the fundamental right to marry is guaranteed to samesex couples by both the Due Process Clause and the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution in a 54 decision.