Exhaled nitric oxide and tracheal endothelin-1 in preterm infants with and without RDS.
Olsen SL, Clark PL, Thibeault DW, Norberg M, Truog WE. Exhaled nitric oxide and tracheal endothelin-1 in preterm infants with and without RDS. Pediatr Pulmonol. 2003 Nov; 36(5):421-6.