String toStringVcfInfo(Collection<String> strs) {
		// Sort strings
		ArrayList<String> list = new ArrayList<String>(strs);
		Collections.sort(list);

		// Add the all
		StringBuffer sb = new StringBuffer();
		for (String str : list)
			if (!str.isEmpty()) sb.append(str + ",");

		if (sb.length() > 0) sb.deleteCharAt(sb.length() - 1); // Remove last comma
		return sb.toString();
	}