The lancet and the gum-lancet: 400 years of teething babies
400 Years
A RECORD OF THE COMMON SORETHROATS OCCURRING AMONGST 400 ADOLESCENTS DURING A PERIOD OF TWENTY-FIVE YEARS.
Degradation of Sugars on Ion-Exchange Columns of ‘Amberlite IRA 400 (OH′)’
Ficoll 400
A RECORD OF THE INFECTIOUS DISEASES OCCURRING AMONGST 400 ADOLESCENTS DURING A PERIOD OF TWENTY-FIVE YEARS.
400 Anos 4 MESES, 400 ANOS
Case 400
A RECORD OF THE DEATHS OCCURRING AMONGST 400 ADOLESCENTS BETWEEN JAN. 1ST, 1871, AND DEC. 31ST, 1895.
INCIDENCE OF ENTAM$OElig;BA HIS TOLYTICA AND OTHER INTESTINAL PROTOZOA AMONG 400 HEALTHY NEW ENTRIES TO THE ROYAL NAVY.
