function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Amon, Diva J & Ziegler, Amanda F & Drazen, Jeffrey C', 2],
    ['Cleva, Régis', 5],
    ['Cleva, Régis & Wormhoudt, Alain Van', 1],
    ['González, José A.', 1],
    ['Komai, Tomoyuki & Shanis, Rajool', 2],
    ['Martin, Joel W. & Haney, Todd A.', 1],
    ['Perez-Gelabert, Daniel E.', 1],
    ['Takeda, Masatsune & Hanamura, Yukio', 1],
    ['Wicksten, Mary K.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=16)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 9, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);