Anyway, this is for concrete spoilers only. No discussion whatsoever.
Episode 2.20: Band-Aid Covers the Bullet Hole
Airdate: March 12, 2006
02/27 - It becomes a bad day for Cristina when Bailey instructs her to take care of her baby. Meanwhile, Derek and Addison come to terms with their relationship, and Denny continues to be an obstacle in Alex's getting closer to Izzie. Source: ABC
Episode 2.21: Superstition
Airdate: March 19, 2006
02/14 -Jesse, a patient with OCD, causes headaches for all with his insistence on counting and rhyming. The interns urge a patient facing a potentially fatal surgery to not protect his anonymity over his sobriety. Source: SpoilerFix.com