TY - RPRT TI - Activity-dependent synaptic competition in vitro: heterosynaptic suppression of developing synapses. AU - Y J Lo AU - M M Poo PY - 1991 DO - 10.1126/science.1658939 UR - https://pubmed.ncbi.nlm.nih.gov/1658939/ ID - 1658939 ER -