I have unsubscribed lothar.linde@yahoo.de from the mailing list, and also confirmed that the other two email addresses are no subscribed.
Just in case there is yet another email address tied to this user that we do not know about, I might include the following in the letter template I sent you earlier today. At the end of the second paragraph, after "We have also reviewed our lists to ensure that you receive no further communications from Samitivej Hospital without your direct request.: