function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arzanov, Yu. G. & Martynov, V. V. & Nikulina, T. V.', 1],
    ['Beaver, Roger A.', 4],
    ['Beaver, Roger A. & Ghahari, Hassan & Sanguansub, Sunisa', 1],
    ['Beaver, Roger A. & Sanguansub, Sunisa', 5],
    ['Beaver, Roger A. & Smith, Sarah M.', 4],
    ['Bright, Donald E.', 10],
    ['Broun, Thomas', 1],
    ['Cognato, Anthony I.', 1],
    ['El-Hawagry, Magdi S. & Sharaf, Mostafa R. & Al Dhafer, Hathal M.', 1],
    ['Fairmaire, L.', 1],
    ['Motschulsky, Victor de', 4],
    ['SchedL, Karl E.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);