function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 1],
    ['Hamilton, R. W. & Novinger, A. L.', 12],
    ['Legalov, A. A.', 23],
    ['Legalov, A. A. & Shevnin, E. Yu.', 6],
    ['Lyal, Christopher H. C. & Alonso-Zarazaga, Miguel A.', 1],
    ['Poinar, George O. & Legalov, A. A.', 2],
    ['Thomas, Michael C. & Robert H. Turnbow, Jr. & Steiner, Warren', 1],
    ['Verdugo, Antonio & Stüben, Peter E. & Torres, Jose L.', 1],
    ['Yunakov, Nikolai & Nazarenko, Vitalij & Filimonov, Rostislav', 17]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=64)',
    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);