function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Barataud, Julien', 6],
    ['Cadena-Castañeda, Oscar J.', 1],
    ['Desutter-Grandcolas, Laure', 1],
    ['Divya, Govindaraj & Senthilkumar, Natchiappan', 2],
    ['Gupta, Sunil Kumar & Chandra, Kailash', 2],
    ['Hemp, Claudia', 2],
    ['Kim, Tae-Woo & Puskás, Gellért', 2],
    ['Liu, Chun-Xiang', 5],
    ['Massa, Bruno', 5],
    ['Massa, Bruno & Annoyer, Philippe & Perez, Cyrille', 2],
    ['Monnerat C. & Thorens P. & Walter T. & Gonseth Y.', 3],
    ['Nagar, Rajendra & Swaminathan, R. & Mal, Jhabar', 3],
    ['Nagar, Rajendra & Swaminathan, Rajamani & Meena, Ashok Kumar', 4],
    ['Naskrecki, Piotr & Guta, Ricardo', 3],
    ['Skejo, Josip & Rebrina, Fran & Szövényi, Gergely', 2],
    ['Other (14)', 14]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=57)',
    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);