Lansche J M
Calif Med. 1972 Jun;116(6):18-22.
An investigation of 30 recorded deaths in sport diving in California in 1970 gave evidence of equipment failure in two, a failure of the victims' judgment or training in 13, and a failure of rescue attempts in four instances. In three histories no cause could be found. Factors associated with the deaths are reported. In the same period there were recorded in the state 171 drownings in home pools out of a total of 712 drownings in water sports.
1970年对加利福尼亚州30起有记录的体育潜水死亡事件进行的调查显示，两起是设备故障导致，13起是受害者判断失误或训练不足所致，四起是救援尝试失败造成。有三起案例未查明死因。报告了与这些死亡事件相关的因素。同一时期，该州共发生712起水上运动溺水事件，其中171起发生在家用泳池中。
