(Norwegian University of Science and Technology) Both the literature and practice indicate that children can stand without support starting at around 9 months old."But with some training, children can stand much sooner than that, even before they're 4 months old," says Professor Hermundur Sigmundsson at NTNU's Department of Psychology.
from EurekAlert! - Social and Behavioral Science http://ift.tt/2rlLtVm
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