function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Bhalerao, G. D.', 1],
    ['Chandler, Asa C.', 1],
    ['Cohn, Ludwig', 1],
    ['Faust, Ernest Carroll', 1],
    ['Fischoeder, F.', 9],
    ['Fukui, T.', 1],
    ['González-Acuña, Daniel & Moreno, Lucila & Cicchino, Armando', 1],
    ['Gupta, S. P. & Tandon, V. L.', 1],
    ['Gupta, V. & Ahmad, J.', 1],
    ['Gupta, V. & Puri, M.', 1],
    ['Ingles, Lloyd G.', 1],
    ['Kobayashi, Harujiro', 1],
    ['Muniz-Pereira, Luís C. & Vieira, Fabiano M. & Luque, José L.', 3],
    ['Paredes-León, Ricardo & García-Prieto, Luis', 3],
    ['Stunkard, Horace W.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=28)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);