1 Sanhedrin 73a
2 Leviticus 19:16
3 Mishneh Torah, Laws of Murder and Guarding Life 1:14
4 Beis Yosef, Choshen Mishpat 426
5 Jerusalem Talmud, Terumos, end of 8th chapter
6 S’ma, Shulchan Aruch, Choshen Mishpat, 426:2
7 Sanhedrin 73A and Nida 61A
8 Pischei Teshuva, Shulchan Aruch, Choshen Mishpat, 426:2. The actual ruling of the Babylonian Talmud is probably found in Sanhedrin 73a; see Maharam Shik, on the 613 mitzvos, mitzvah 238 and Aruch L’ner, Sanhedrin 73a. Alternatively, the argument may be that found in Baba Metzia 62a, regarding the disagreement between Rabbi Akiva and Ben Petura regarding whether someone must share the last of their water with someone else if it will possibly endanger the owner’s life. The Ohr Someach, Laws of Murder 7:8, points out that Maimonides’ ruling that an inadvertent murderer may not leave a city of refuge, even to save the whole Jewish nation, proves that one may not enter a questionable danger to save others from a definite danger.
9 Responsa Radbaz, Volume 3:627 (1052)
10 Responsa Radbaz, Volume 5:218 (1582)
11 Nishmat Avraham, Orach Chaim, 329:6
12 Pischei Teshuva, Shulchan Aruch, Choshen Mishpat, 426:2
13 Bava Metzia 33A
14 Shulchan Aruch, Choshen Mishpat, 264:1
15 Shulchan Aruch, Orech Chaim, 329:8
16 Mishnah Brurah, 329:19
17 Psalms 116:6
18 Medicine and Jewish Law, edited by Fred Rosner, Vol. I, chapter 4 sites the case as being in Assia, vol. 11 (1986), pp. 5-11.
19 Rabbi Ovadia Yosef (Halacha U’Refuah, vol. 3, pp.61-63), Rabbi Yaakov Yosef Weiss (Minchas Yitzchak, 6:103, p.2), Rabbi Eliezer Yehuda Waldenberg (Tzitz Eliezer 10:25), Rabbi Moshe Meiselman (Halacha U’Refuah, vol. 2, pp.114-121), Rabbi Moshe Hershler (Halacha U’Refuah, vol. 2, pp.122-127).
20 Kovetz Tshuvos, Siman 124
21 This section relies heavily on the treatise by Rabbi Yaakov Weiner, “Treatment of Contagious Diseases,” available from the Jerusalem Center for Research, P. O. Box 57058, Jerusalem, Israel (http://www.j-c-r.org)
22 Pesachim 8a
23 Yuma 11a, Kiddushin 39b
24 Bava Kama 60b
25 Yam Shel Shlomo, 6:26
26 Responsa Maharil 50
27 Migdal Oz, Even Bochan, 85
28 Jewish Medical Law: A Concise Response; Compiled and Edited by Avraham Steinberg, M.D. Translated by David Simons M.D.; Beit Shammai Publications, 1989, Part 10, Chapter 11