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History
Lu travels to Puerto Rico, where her beloved grandmother urgently needs a bone-marrow transplant to survive. As the headstrong doctor copes with this life-or-death situation, she flashes back to her days as a resident, recalling her first meeting with Peter and Lana. Mary J. Blige guest stars as a moody blues singer named Simone.
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Other episodes for this season
![Donors](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Adverse Reactions](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Gray Matter](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![History](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Attachments](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Relief](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Impaired](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Rebirth](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Control Group](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Zol Zein Gezint](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Systemic](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Accidents](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Silent Epidemic](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Hot Flash](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Bloodwork](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Black 'n' Flu](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Precautions](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Shock](https://image.tmdb.org/t/p/w300/ivwJvRZLGiJJAG3SG3uJVd2Vhu1.jpg)
![Type and Cross](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Rape Kit](https://image.tmdb.org/t/p/w300/3HXrpLhUnt8RrcNdENHOwBoRnTU.jpg)
![Trauma](https://image.tmdb.org/t/p/w300/1l2c2IumZfSluw4MErhGJxbOGe5.jpg)
![Recovery Time](https://image.tmdb.org/t/p/w300/uFSQAJ2zUNuqR9Q1cccmcr2fLiO.jpg)