function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Connors, Matthew G.', 7],
    ['Ghahari, H. & Hayat, R. & Tabari, M. & Ostovan, H. & Imani, S.', 1],
    ['Ghahari, H. & M. G & R, Blepharopsis & C, Empusa', 1],
    ['Liu, Qin-Peng & Liu, Zi-Jun & Wang, Guo-Li & Yin, Zi-Xu', 12],
    ['Moulin, Nicolas', 1],
    ['Oshima, Kazuyuki', 1],
    ['Pfäuti, Patrice & Hollier, John', 3],
    ['Schwarz, Christian J. & Konopik, Oliver', 1],
    ['Temreshev, Izbasar I. & Makezhanov, Arman M.', 1],
    ['Unnahachote, Thornthan & Vermeersch, Xavier H. C.', 3]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=31)',
    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);