function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Brunner von Wattenwyl, C.', 1],
    ['Cadena-Castañeda, Oscar J. & Rodríguez, William David', 2],
    ['Hiremath, S. R. & Prathapan, K. D.', 3],
    ['Weissman, David B. & Song, Hojun & Vandergast, Amy G.', 3],
    ['Weissman, David B. & Vandergast, Amy G. & Song, Hojun', 38]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=47)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 5, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);