We showed the letter by Dr. Rolles and his colleagues to Dr. Lamabadusuriya and his colleagues, who replied as follows

Antzeko izenburuak

• We showed this letter to Dr. Norman who replied as follows
  nork: Norman, A. P.
  Argitaratua: (1976)
• This letter was shown to Dr Joosten and colleagues who reply as follows
  nork: Joosten, E.
  Argitaratua: (1993)
• We showed the letter from Dr. D'Souza to Dr. Davies and Dr. Hambleton, who replied as follows
  nork: Hambleton, Garry, et al.
  Argitaratua: (1976)
• Dr. Schechter and his colleagues reply
  nork: Schechter, Martin T., et al.
  Argitaratua: (1987)
• Dr. Schechter and his colleagues reply
  nork: Schechter, Martin T., et al.
  Argitaratua: (1987)