function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Alfred W. Thomson & Lawrence M. Page', 14],
    ['Chu, X. - L.', 1],
    ['Heok Hee Ng', 23],
    ['Heok Hee Ng & David R. Edds', 9],
    ['Heok Hee Ng & Heok Hui Tan', 13],
    ['Ng, Heok Hee & Tan, Heok Hui', 1],
    ['Roberts, Tyson R.', 1],
    ['Zhou, W. & Chu, X. - I.', 1],
    ['Zhou, Wei & Li, Xu & Yang, Ying', 11]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    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);