function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Appolloni, Massimo & Smriglio, Carlo & Amati, Bruno', 2],
    ['Barry, Peter J. & Mccormack, Grace P.', 3],
    ['Hryniewicz, Krzysztof & Amano, Kazutaka', 2],
    ['Hryniewicz, Krzysztof & Little, Crispin T. S.', 2],
    ['Kamenev, Gennady M.', 5],
    ['Kiel, Steffen & Sami, Marco & Taviani, Marco', 6],
    ['Moore, Charles', 3],
    ['Negri, Mauro Pietro & Corselli, Cesare', 5],
    ['Olive, Graham & Rodrigues, Clara F. & Cunha, Marina R.', 3],
    ['Oliver, P. Graham', 17],
    ['Oliver, P. Graham & Frey, Melissa A.', 5],
    ['Oliver, P. Graham & Holmes, Anna', 3],
    ['Oliver, P. Graham & Rodrigues, Clara F. & Carney, Robert', 2],
    ['Oliver, P. Graham & Sellanes, Javier', 4],
    ['Rodrigues, Clara F. & Oliver, Graham & Cunha, Marina R.', 8],
    ['Other (3)', 4]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=74)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 16, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);