function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Hughes, Lauren E. & Lowry, James K.', 2],
    ['Lowry, J. K. & Peart, R.', 4],
    ['Myers, A. A. & Lowry, J. K.', 2],
    ['Serejo, C. S. & Lowry, J. K.', 2],
    ['Thacker, Dimple & Patel, Krupal & Myers, Alan', 3],
    ['Wongkamhaeng, Koraon & Dumrongrojwattana, Pongrat', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=15)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 6, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);