function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Gibson 1, Randy & Hutchins 2, Benjamin T. & Krejca 3, Jean K.', 1],
    ['Graening, G. O. & Rogers, D. Christopher & Holsinger, John R.', 2],
    ['Holsinger, John R. & Ansell, Lynnette', 1],
    ['Holsinger, John R. & Ansell, Lynnette Meador & Shafer, Justin', 4],
    ['Holsinger, John R. & Sawicki, Thomas R.', 1],
    ['Niemiller, Matthew L. & Cannizzaro, Andrew G.', 1],
    ['Sidorov, Dmitry A. & Holsinger, John R. & Takhteev, Vadim V.', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=14)',
    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);