'I had a letter from a guy about something I'd written in a Doctor Who script, to do with super-compressed matter, degenerate matter and gravitational fields.

我收到一个家伙写来的信，是关于我写的一集Doctor Who剧本，跟超压缩物质、简并态物质和引力场的关系。

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In a letter published in a local paper, the doctor said events had forced him to leave the country abruptly after his practice was visited by intelligence officers.

这名医生在当地报纸上发表一封信，他说，在情报官员访问自己后，一些事情迫使他立即离开国内。

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But if the tenant wants to bring a dog, you have a right to ask for a letter from a therapist or doctor that explains why the animal is necessary to use and enjoy the unit.

WSJ: Should 'Support Dogs' Be Allowed in No-Pets Buildings?--WSJ House Talk

At Kaiser Permanente Northern California, a group of nonprofit hospitals and health plans with 3.2 million members, pediatric patients receive a letter when they turn 18 inviting them to choose their own doctor among a group of internists and family physicians who have a special interest and training in young adult issues.

WSJ: Young Adults Find It's Hard to Part With the Pediatrician

Earlier this year, prompted by the growing availability of consumer DNA tests, the American Medical Association sent a letter to the FDA saying that genetic testing should only be done with the guidance of a doctor or trained genetic counselor.

WSJ: Citizen Scientists Take On the Health Establishment