| Org. studying viruses | 21 |
| Org. doing DNA research | 23 |
| Medical-research agcy. | 22 |
| Medical research grp. | 21 |
| Medical research agcy. in Bethesda | 34 |
| Med. research agency | 20 |
| Govt.'s Laboratory of Hygiene, now | 38 |
| Govt. medical research org. | 27 |
| Govt. group first called the Laboratory of Hygiene | 50 |
| Govt. agcy with a Stem Cell Information section on its website | 62 |
| Gov't medical org. | 22 |
| Federal wellness org. | 21 |
| Federal medical research agcy. | 30 |
| Federal medical agcy. | 21 |
| Federal biomedical agcy. | 24 |
| Federal agcy. that conducts medical research | 44 |
| Fed. med. research org. | 23 |
| Fed. med. research group | 24 |
| Fed. med. research agency | 25 |
| Fed. med. agency | 16 |
| Fed. disease research org. | 26 |
| Fed. agency with an annual almanac | 34 |
| Biomedical research inits. | 26 |
| Biomed. group | 13 |
| Bethesda, Md. health org. | 25 |
| Bethesda, Maryland health org. | 30 |
| Bethesda-based research org. | 28 |
| Bethesda-based medical org. | 27 |
| Agcy. with the Office of Disease Prevention | 43 |
| It meant nothing to Caesar | 26 |
| Nothing, to Nero | 16 |
| Zero, to Nero | 13 |
| Nothing, in Latin | 17 |
| It meant nothing to Nero | 24 |
| It's nothing to Nero | 24 |
| Quantity of no importance | 25 |
| ___ dicit (legal refusal) | 25 |
| Nothing, in ancient Rome | 24 |
| It was nothing to Nero | 22 |
| Zero for Nero | 13 |
| This meant nothing to Nero | 26 |
| Nothing, to Cicero | 18 |
| Nothing, to Caesar | 18 |
| Nothing, in Old Rome | 20 |
| Mere nothing: L. | 16 |
| It was nothing, to Nero | 23 |
| Gaius' goose egg? | 21 |
| Fuck-all, to Flavius | 20 |
| "Nothing," in legal phrases | 37 |
| ___ obstat (error-free) | 23 |
| ___ dicit (he says nothing) | 27 |
| ___ dicit (defendant's refusal to talk) | 43 |
| Suffix with beat or neat | 24 |
| Suffix with neat or beat | 24 |
| Suffix with neat | 16 |
| Suffix with peace | 17 |
| Suffix with no-good | 19 |
| Neat ending? | 12 |
| Ending for beat or neat | 23 |
| Suffix with beat | 16 |
| Neat finish? | 12 |
| Ending with beat or peace | 25 |
| End for beat or neat | 20 |
| Beat or neat ending | 19 |
| Beat ending | 11 |
| Beat back? | 10 |
| '80s idol Kershaw | 21 |
| Suffix with refuse | 18 |
| Suffix with neat or peace | 25 |
| Suffix with beat or refuse | 26 |
| Suffix with beat or peace | 25 |
| Suffix from the Russian | 23 |
| Suffix for no-good | 18 |
| Suffix for beat | 15 |
| Refuse ending | 13 |
| Peace or beat ending | 20 |
| Peace ending? | 13 |
| Peace ender? | 12 |
| No-good ending | 14 |
| No-good end? | 12 |
| Neat or beat ender | 18 |
| Neat end? | 9 |
| Live Aid singer Kershaw | 23 |
| Kin of -ster | 12 |
| Kin of -arian | 13 |
| It goes after refuse | 20 |
| English songwriter Kershaw | 26 |
| Ending with beat or refuse | 26 |
| Ending with beat | 16 |
| Ending for refuse | 17 |
| Ending for beat | 15 |
| End of peace? | 13 |
| An ending to beat | 17 |
| An end to peace? | 16 |
| An end to peace | 15 |
| "Wouldn't It Be Good" Kershaw | 43 |
| "Human Racing" Kershaw | 32 |
| Greek goddess of victory | 24 |
| Goddess of victory | 18 |
| Victory goddess | 15 |