1. All of the plaintiffs' claims are dismissed.

2. The costs of lawsuit are assessed against the plaintiffs.

Basic Facts

The defendant is a person who establishes and operates the Seoul Asan Hospital (hereinafter referred to as the "Defendant Hospital") located in Songpa-gu Seoul Metropolitan Government 2-dong 388-1 (hereinafter referred to as the "Defendant Hospital"), and is the employer of the medical staff of the defendant hospital, the non-party deceased C (hereinafter referred to as the "the deceased"), and the mother of the plaintiff B.

(1) On August 20, 2004, the Deceased was hospitalized in the Defendant Hospital with brain light on August 20, 2004, and was hospitalized with blood and treatment on August 23, 2004 due to a dial reduction in the blood market. On October 4, 2004, after the divers examination, the Defendant Hospital showed a small decrease in macro-nuclear cells and the diversology. Accordingly, the medical personnel of the Defendant Hospital regularly observe the blood values of the Deceased.

(2) After that, the Deceased was regularly subject to blood test on May 14, 2010, the result of blood test showed that hemogles, white blood cells, and blood plate values have gradually decreased, and the medical personnel of the Defendant Hospital conducted the pelo test on June 21, 2010 for the Deceased.

그 결과 망인은 골수형성이상증후군(myelodysplastic syndrome : MDS) 중 다계열형성이상불응성혈구감소증refractory cytopenia with multilineage dysplasia : RCMD)이라는 진단을 받았고, 피고 병원 의료진은 망인에 대하여 철분제를 투여하면서 경과관찰을 하기로 하였다. (3) 망인의 혈소판수는 2010. 8. 10. 20,000/㎣ 미만으로 감소하였고, 2011. 10. 11.에도 20,000/㎣ 미만의 소견을 보였으며, 2011. 11. 22. 12,000/㎣으로 감소하였다. (4) 피고 병원 의료진은 2011. 11. 22. 이후 무렵 망인에게 면역억제요법과 골수이식술에 관하여 비교 설명하였고, 망인은 동종조혈모세포이식을 받기로 결정하였다. (5 피고 병원 의료진은 2012. 5. 4. 망인에게 동종조혈모세포이식을 위하여 이식 방법, 목적, 기대효과, 가능한 합병증 등에 관하여 설명하고, 망인으로부터 동종조혈모세포이식 동의를 받았다....