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Sport ParticipationPhysical ActivitySports ParticipationChildhood Physical ActivityEducationSport PsychologyChild DevelopmentHealth Sciences
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Variations in pattern of pubertal changes in girls.
W. A. Marshall, J. M. Tanner · Archives of Disease in Childhood · 1969 · 5.8K citations · Full text
Patella Position in the Normal Knee Joint
John N. Insall, Eduardo A. Salvati · Radiology · 1971 · 1.6K citations