function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Ito, Tomiko & Nishimoto, Hiroyuki & Nishimoto, Futaba', 1],
    ['Ito, Tomiko & Ohkawa, Ayuko', 3],
    ['Laudee, Pongsak & Iii, U. & Iv, U. & Sem, U. Iv V.', 1],
    ['Malicky, H.', 1],
    ['Malicky, H. & Chantaramongkol, P.', 1],
    ['Malicky, Hans', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=8)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);