function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Kim, Sora & Byun, Bong-Kyu & Park, Kyu-Tek & Lee, Seunghwan', 2],
    ['Matthews, Deborah L. & Miller, Jacqueline Y. & Simon, Mark J.', 1],
    ['Pathania, Prakash C. & Das, Apurva & Chandra, Kailash', 2],
    ['Ustjuzhanin, P. Ya.', 1],
    ['Vargas, Hector A.', 2],
    ['Yano, Koji & Heppner, John B.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=9)',
    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);