function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Animalesto, Gloria & Dewi, Kartika & Apriyanti, Yuni', 2],
    ['Goldberg, Stephen R. & Bursey, Charles R. & Grismer, L. Lee', 1],
    ['Hasegawa, Hideo', 1],
    ['Karve, J. N.', 1],
    ['Purwaningsih, Endang & Dewi, Kartika & Hasegawa, Hideo', 2],
    ['Sata, Naoya', 2],
    ['Zhang, Shuqian & Zhang, Luping', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);