Wolfgang Amadeus Mozart never married.
PQRST are the sixteenth through twentieth letters of the ISO basic Latin alphabet and may be used to refer to that alphabet as a whole .. ISO basic Latin alphabet. ISO basic Latin alphabet. PQRST may refer to  :. The PQRST method , a method of studying. method of studying. PQRST ( study skill ). OPQRST , a mnemonic initialism used by persons performing first aid , omitting O for Onset of the event. OPQRST. OPQRST. The part of the Alphabet song. Alphabet song. Alphabet song. One complete heartbeat in the ECG -LRB- P-wave , QRS complex , T-wave -RRB-. ECG. ECG