function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arabuli, Lela & Murvanidze, Lali & Faltynkova, Anna', 2],
    ['Campião, Karla Magalhães & Morais, Drausio Honorio', 1],
    ['Dollfus, R. P.', 1],
    ['Kossack, Wilhelm', 1],
    ['Moravec, František & Sey, Otto', 1],
    ['Shakarbaev, U. A. & Akramova, F. D. & Azimov, D. A.', 1],
    ['Uchida, A. & Itagaki, H. & Inoue, H.', 1],
    ['Wang, P. - q.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 8, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);