public static void SerializePerson(Person value, IFhirWriter writer)
        {
            writer.WriteStartRootObject("Person");
            writer.WriteStartComplexContent();

            // Serialize element's localId attribute
            if( value.InternalId != null && !String.IsNullOrEmpty(value.InternalId.Contents) )
                writer.WriteRefIdContents(value.InternalId.Contents);

            // Serialize element extension
            if(value.Extension != null && value.Extension.Count > 0)
            {
                writer.WriteStartArrayElement("extension");
                foreach(var item in value.Extension)
                {
                    writer.WriteStartArrayMember("extension");
                    ExtensionSerializer.SerializeExtension(item, writer);
                    writer.WriteEndArrayMember();
                }
                writer.WriteEndArrayElement();
            }

            // Serialize element language
            if(value.Language != null)
            {
                writer.WriteStartElement("language");
                CodeSerializer.SerializeCode(value.Language, writer);
                writer.WriteEndElement();
            }

            // Serialize element text
            if(value.Text != null)
            {
                writer.WriteStartElement("text");
                NarrativeSerializer.SerializeNarrative(value.Text, writer);
                writer.WriteEndElement();
            }

            // Serialize element contained
            if(value.Contained != null && value.Contained.Count > 0)
            {
                writer.WriteStartArrayElement("contained");
                foreach(var item in value.Contained)
                {
                    writer.WriteStartArrayMember("contained");
                    FhirSerializer.SerializeResource(item, writer);
                    writer.WriteEndArrayMember();
                }
                writer.WriteEndArrayElement();
            }

            writer.WriteEndComplexContent();
            writer.WriteEndRootObject();
        }
        /// <summary>
        /// Parse Person
        /// </summary>
        public static Person ParsePerson(IFhirReader reader, ErrorList errors, Person existingInstance = null )
        {
            Person result = existingInstance != null ? existingInstance : new Person();
            try
            {
                string currentElementName = reader.CurrentElementName;
                reader.EnterElement();

                while (reader.HasMoreElements())
                {
                    // Parse element extension
                    if( ParserUtils.IsAtFhirElement(reader, "extension") )
                    {
                        result.Extension = new List<Extension>();
                        reader.EnterArray();

                        while( ParserUtils.IsAtArrayElement(reader, "extension") )
                            result.Extension.Add(ExtensionParser.ParseExtension(reader, errors));

                        reader.LeaveArray();
                    }

                    // Parse element language
                    else if( ParserUtils.IsAtFhirElement(reader, "language") )
                        result.Language = CodeParser.ParseCode(reader, errors);

                    // Parse element text
                    else if( ParserUtils.IsAtFhirElement(reader, "text") )
                        result.Text = NarrativeParser.ParseNarrative(reader, errors);

                    // Parse element contained
                    else if( ParserUtils.IsAtFhirElement(reader, "contained") )
                    {
                        result.Contained = new List<Resource>();
                        reader.EnterArray();

                        while( ParserUtils.IsAtArrayElement(reader, "contained") )
                            result.Contained.Add(ParserUtils.ParseContainedResource(reader,errors));

                        reader.LeaveArray();
                    }

                    // Parse element internalId
                    else if( reader.IsAtRefIdElement() )
                        result.InternalId = Id.Parse(reader.ReadRefIdContents());

                    else
                    {
                        errors.Add(String.Format("Encountered unknown element {0} while parsing {1}", reader.CurrentElementName, currentElementName), reader);
                        reader.SkipSubElementsFor(currentElementName);
                        result = null;
                    }
                }

                reader.LeaveElement();
            }
            catch (Exception ex)
            {
                errors.Add(ex.Message, reader);
            }
            return result;
        }