Special lecture: twenty years of international surgery.
D003906:Developing Countries; D006301:Health Services Needs and Demand / Q000639:trends; D006801:Humans; D007194:India; D007393:International Educational Exchange; D009493:Neurosurgery / Q000193:education* / Q000639:trends; D010147:Pain Measurement / Q000379:methods; D010166:Palliative Care / Q000639:trends