4bone densit$.mp.
52 or 3 or 4
61 and 5

From: Appendix B, Detailed Methods

Cover of Screening for Osteoporosis
Screening for Osteoporosis: Systematic Review to Update the 2002 U.S. Preventive Services Task Force Recommendation [Internet].
Evidence Syntheses, No. 77.
Nelson HD, Haney EM, Chou R, et al.

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