Write the response. Dialog:
Person A: What was Frank Sander's connection with the National Health Service?;
Person B: Professor Sander also served as a trustee of the Buckingham, Browne & Nichols School in Cambridge from 1969 to 1975.;
Person A: What did he do after 1975?;
Person B: In 1975 Sander became active in the subject of alternative methods of dispute resolution (ADR).;
Person A: Are there any other interesting aspects about this article?;
Person B: In 1976, at the invitation of the Chief Justice of the United States, Professor Sander delivered a paper entitled "Varieties of Dispute Processing" at the Pound Conference which put forth the notion of the multidoor courthouse.;
Person A: What is the multidoor courthouse?;
Person B: This was the notion that disputes could be solved by a range of different approaches—adjudication through the courts, as well as mediation, arbitration, neighborhood justice centers among other approaches.;
Person A: Did he have any other notable achievements?;
Person B: This idea of having "the forum fit the fuss" caught on in a time when many courthouses were over-crowded and litigation had become quite expensive.;
Person A: Was he recognized for his work?;
Person B: 
ADR approaches are presently being utilized in Houston, Texas and Cambridge, Massachusetts as well as several other cities in the US and abroad.