Throat cultures in Baltimore City: A study of the Maryland State Health Department laboratory program.
D000367:Age Factors; D001431:Bacteriological Techniques; D006801:Humans; D008396:Maryland; D010614:Pharynx / Q000382:microbiology*; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D013297:Streptococcus pyogenes / Q000302:isolation & purification; D014481:United States; D014492:United States Public Health Service