function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Cabezudo, Baltasar & Solanas, Federico Casimiro-Soriguer', 1],
    ['DeFilipps, Robert A. & Krupnick, Gary A.', 1],
    ['Fahey, Patrick S. & Udovicic, Frank & Nicolle, Dean', 4],
    ['Hill, John & Johnson, Lawrence Alexander Sidney', 1],
    ['Jeanmonod, Daniel', 2],
    ['Mille, Christian & Henderson, Rosa C. & Cazères, Sylvie', 1],
    ['Percy, Diana M. & Rung, Alessandra & Hoddle, Mark S.', 2],
    ['Verloove, Filip', 2],
    ['Zhou, Ya-Dong & Mwachala, Geoffrey & Hu, Guang-Wan', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    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);