Doctors, nurses, medical help in conjunction with S'char Shabbos.
Causing a Bruise or Bleeding: Other Melachot Involved. Removing Splinters on Shabbos and Actions to Stop Bleeding;
Does One Have to Use a Utensil (כלי) or Just Using One's Hands Is Enough for the Melacha;
how to work with a hammock on Shabbos;