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Muscle weakness, cramping, and twitching.
Blood type A+ indicates the presence of Rh antigen on the red blood cells (specifically type A antigens with the presence of a protein called the Rhesus factor)
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Piaget's theory of cognitive development is a comprehensive theory about the nature and development of human intelligence. It was originated by the Swiss developmental psychologist Jean Piaget (1896–1980). ... Piaget's theory is mainly known as a developmental stage theory.
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