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.
Labored breathing is distinguished from shortness of breath or dyspnea, which is the sensation of respiratory distress rather than a physical presentation. Still, many simply define dyspnea as difficulty in breathing without further specification, which may confuse it with e.g. labored breathing or tachypnea (rapid breathing). Labored breathing has occasionally been included in the definition of dyspnea as well.