• 1 Memorial Library

• 5 Journals, Magazines, Newspapers
• 1 Microforms

• 3 Infants
• 2 Causes
• 2 Childbirth
• 2 Death
• 2 Prenatal care
• 1 Birth Rate
• 1 Birth Weight
• 1 Diseases
• 1 Epidemiology
• 1 Health status indicators
• 1 History
• 1 Infant Mortality
• 1 Morbidity
• 1 Prenatal Care
• 1 Public Health
• 1 Public health
• 1 Statistics, Medical
• 1 Statistics, Vital

• 3 Massachusetts. Bureau of Health Statistics, Research and Evaluation
• 1 Centers for Disease Control (U.S.)
• 1 Centers for Disease Control and Prevention (U.S.)
• 1 Lowell (Mass.). City physician
• 1 Massachusetts. Bureau of Family and Community Health
• 1 Massachusetts. Department of Public Health

• 5 English

• 1 Lowell
• 1 Lowell (Mass.)

• 5 Statistics
• 2 Statistics, Vital
• 2 statistics
• 1 Statistics, Medical
• 1 periodicals

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