@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result
				+ ((dateOfBirth == null) ? 0 : dateOfBirth.hashCode());
		result = prime * result
				+ ((firstName == null) ? 0 : firstName.hashCode());
		result = prime * result
				+ ((lastName == null) ? 0 : lastName.hashCode());
		result = prime * result + patientCardId;
		result = prime * result
				+ ((patronymic == null) ? 0 : patronymic.hashCode());
		return result;
	}