1 Mass miniature radiography, a widely used screening procedure for tuberculosis for many years but uncommon today.
2 Measles, mumps, rubella vaccine. This is recommended by the US Centers for Disease Control and Prevention and by many other authorities for routine immunization of infants and children against these three diseases. For details on dosage and timing, See vaccine-preventable disease.
3 Maternal mortality ratio. These alternative interpretations of a set of initials illustrate the pitfalls of written or oral communications that use initials or acronyms rather than spelling out in full what is meant.
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