Although in September 1969 John Lennon privately informed the other Beatles that he was leaving the group, there was no public acknowledgement of the break-up until Paul McCartney announced on 10 April 1970 he was leaving the Beatles.
Spontaneous breathing trial. A goal for most patients on mechanical ventilation is to be weaned from the ventilator. The weaning process is highly dependent on the patient's pathology, but the final common pathway to ventilator independence always includes at least one trial of spontaneous breathing. Trials of spontaneous breathing have been shown to accurately predict the success of spontaneous breathing.
Spontaneous human combustion. For combustion not involving the human body, see spontaneous combustion. Spontaneous human combustion (SHC) is a term encompassing reported cases of the combustion of a living (or very recently deceased) human body without an apparent external source of ignition.