function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Basu, Srimoyee & Chandra, Kailash & Venkatesan, Thiruvengadam', 3],
    ['Duc, Tran Anh & Zettel, Herbert', 4],
    ['Nakthong, La-Au & Vitheepradit, Akekawat & Sites, Robert W.', 4],
    ['Polhemus, John T. & Tran, A. D. & Polhemus, Dan A.', 6],
    ['Tran, A. D. & Yang, Chang Man', 1],
    ['Tran, Anh Duc & Zettel, Herbert & Sites, Robert W.', 25],
    ['Vitheepradit, Akekawat & Sites, Robert W.', 6]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=49)',
    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);