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However, in practice, investigators could only introduce a small amount of stratification and could not balance all important variables simultaneously ( Propensity score matching (PSM) was defined as the conditional probability of a subject being assigned to the treatment group given the observed covariates
However, there are few reports on the influence of -3 on pregnancy rate, and no major side effects were reported from the included studies
When combined with GHK-Cu, it accelerates muscle recovery, wound healing, and joint repair in older adults
The mutational constraint spectrum quantified from variation in 141,456 humans
In two mice, cervical dislocation was performed 20 h after hCG administration
Structural Degeneration and Airway Collapse As people age, tissues throughout the body lose elasticity
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