function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Byrd, Mitchell A.', 1],
    ['Coil, William H. & Kuntz, Robert E', 1],
    ['Crowcroft, Peter W.', 1],
    ['Curran, Stephen S. & Overstreet, Robin M.', 1],
    ['Dollfus, R. P.', 1],
    ['Eduardo, Salcedo L.', 1],
    ['Manter, Harold W.', 1],
    ['Setti, E.', 1],
    ['Villarreal, L. A. & Dailey, Murray D.', 1],
    ['Yamaguti, S.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=11)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 10, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);