| Doctoral hurdle | 15 |
| Doctoral hurdles | 16 |
| Doctoral paper, perhaps | 23 |
| Doctoral papers | 15 |
| Doctoral requirements | 21 |
| Doctoral students defend them | 29 |
| Doctoral work | 13 |
| Doctorate | 9 |
| Doctorate deg. | 14 |
| Doctorate degrees | 17 |
| Doctorate exam hurdles | 22 |
| Doctorate grillings | 19 |
| Doctorate hurdle | 16 |
| Doctorate hurdles | 17 |
| Doctorate milestones | 20 |
| Doctorate or master's | 25 |
| Doctorate requirement, often | 28 |
| Doctorate seeker's hurdle | 29 |
| Doctorate tests | 15 |
| Doctorate? | 10 |
| Doctored | 8 |
| Doctored a broken bone | 22 |
| Doctored account | 16 |
| Doctored photo? | 15 |
| Doctored the facts | 18 |
| Doctored, as a deck | 19 |
| DoctorFinder org. | 17 |
| Doctorow best seller | 20 |
| Doctorow work, with "The" | 35 |
| Doctorow's "Loon ___" | 35 |
| Doctorow's "The Book of ___" | 42 |
| Doctorow's "___ Lake" | 35 |
| Doctorow's international restaurant guide? | 46 |
| Doctorow's story of renunciation? | 37 |
| Doctors | 7 |
| Doctors call it parotitis | 25 |
| Doctors documents | 17 |
| Doctors doing reconstructive work | 33 |
| Doctors have them | 17 |
| Doctors hear a lot of them | 26 |
| Doctors make them | 17 |
| Doctors make them in hospitals | 30 |
| Doctors often carry them | 24 |
| Doctors on the cutting edge? | 28 |
| Doctors on the lookout for male enlargements? | 45 |
| Doctors org. | 12 |
| Doctors swear by it | 19 |
| Doctors swear to it | 19 |
| Doctors take it | 15 |
| Doctors who check out head colds, for short | 43 |
| Doctors who may work with cold symptoms, for short | 50 |
| Doctors who work doggedly? | 26 |
| Doctors with spirits | 20 |
| Doctors Without Borders, abroad: Abbr. | 38 |
| Doctors Without Borders, e.g. | 29 |
| Doctors' achievements | 25 |
| Doctors' bags | 17 |
| Doctors' charges | 20 |
| Doctors' creed | 18 |
| Doctors' degrees | 20 |
| Doctors' degrees: Abbr. | 27 |
| Doctors' determinations | 27 |
| Doctors' devices | 20 |
| Doctors' field: Abbr. | 25 |
| Doctors' frolic? | 20 |
| Doctors' gp. | 16 |
| Doctors' group, for short | 29 |
| Doctors' groups, for short | 30 |
| Doctors' grp. | 17 |
| Doctors' grps. | 18 |
| Doctors' listings | 21 |
| Doctors' orders | 19 |
| Doctors' org. | 17 |
| Doctors' org. headquartered in Chicago | 42 |
| Doctors' prescriptions | 26 |
| Doctors' prescriptions? | 27 |
| Doctors' professional magazine | 34 |
| Doctors' requests | 21 |
| Doctors' signatures, stereotypically | 40 |
| Doctors' sine qua non | 25 |
| Doctors' visits | 19 |
| Doctors' works | 18 |
| Doctors: Abbr. | 14 |
| DoctorsÂ' org. | 22 |
| Doctrinaire | 11 |
| Doctrinaire faction | 19 |
| Doctrinaire sort | 16 |
| Doctrinaires | 12 |
| Doctrinaires' kin | 21 |
| Doctrinal | 9 |
| Doctrinal divisions | 19 |
| Doctrinal group | 15 |
| Doctrinal holding | 17 |
| Doctrinal offshoots | 19 |
| Doctrinal pamphlet | 18 |
| Doctrinal statements | 20 |
| Doctrinal suffix | 16 |
| Doctrinal suffixes | 18 |
| Doctrinal word ending | 21 |
| Doctrine | 8 |