function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alfred W. Thomson & Lawrence M. Page', 15],
    ['Chen, Xiao-Yong & Qin, Tao & Chen, Zhi-Ying', 1],
    ['Linthoingambi, I. & Vishwanath, W.', 1],
    ['Ng, Heok Hee', 2],
    ['Ng, Heok Hee & Kottelat, Maurice', 1],
    ['Ng, Heok Hee & Rainboth, W. J.', 4],
    ['Suvarnaraksha, Apinun', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);