function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hodgson, Chris', 8],
    ['Kaydan, Mehmet Bora & Benedicty, Zsuzsanna Konczne', 4],
    ['Mifsud, David & Mazzeo, Gaetana & Russo, Agatino', 1],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 1],
    ['Ramos-Portilla, Andrea Amalia & Caballero, Alejandro', 2],
    ['Schneider, Scott A. & LaPolla, John S.', 8],
    ['Suh, Soo-Jung & Bombay, Khanxay', 1],
    ['Suh, Soo-Jung & Hyun, Ik-Hwa', 1],
    ['Szita, Éva & Benedicty, Zsuzsanna Konczné & Kondo, Takumasa', 12],
    ['Williams, D. J. & Hodgson, Chris J.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=39)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);