TY - Jour Au - Hochberger，J Au - Ell，C Py - 1990Da - 1900/01/01 Ti - Laser Lithotripsy - New Wave SP - 286479 VL - 4 AB - SN - 2291-2789 UR - HTTPS：//DOI.ORG/10.1155/1990 / 286479 DO - 10.1155 / 1990/286479 JF - 加拿大胃肠学杂志PB - Pulsus Group Inc Kw - Er -