TY - RPRT TI - Problematic palpitations and exercise induced preexcitation. AU - H Li AU - A Easley AU - J Windle PY - 1997 DO - 10.1111/j.1540-8159.1997.tb04820.x UR - https://pubmed.ncbi.nlm.nih.gov/9121956/ ID - 9121956 ER -