function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Duwal, Ram Keshari & Jung, Sunghoon & Yasunaga, Tomohide', 1],
    ['Duwal, Ram Keshari & Yasunaga, Tomohide & Lee, Seunghwan', 1],
    ['Duwal, Ram Keshari & Yasunaga, Tomohide & Tomokuni, Masaaki', 2],
    ['Ghahari, Hassan & Chérot, Frédéric', 3],
    ['Linnavuori, Rauno E.', 4],
    ['Yasunaga, Tomohide & Tamada, Yui & Hinami, Haruka', 1],
    ['Yasunaga, Tomohide & Yamada, Kazutaka & Artchawakom, Taksin', 4],
    ['Yasunaga, Tomohide & Yamada, Kazutaka & Morakote, Rut', 3],
    ['Zhang, Xu & Liu, Guo-Qing', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=25)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);