Growth and development of Negro infants.  VI.  Relationship of certain environmental factors to neuromuscular development during the first year of life.
D044383:Black People; D004777:Environment; D006128:Growth; D048788:Growth and Development; D006801:Humans; D007223:Infant; D009132:Muscles / Q000502:physiology*; D009420:Nervous System; D009424:Nervous System Physiological Phenomena
ENVIRONMENT/effects; GROWTH; MUSCLES/physiology; NERVOUS SYSTEM/physiology