function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Baranov, Viktor & Kvifte, Gunnar Mikalsen', 1],
    ['Bitusik, Peter & Novikmec, Milan & Hamerlik, Ladislav', 1],
    ['Bruno Rossaro & Carlotta Casalegno', 16],
    ['Chamutiová, Tímea & Hamerlík, Ladislav & Bitušík, Peter', 4],
    ['Chertoprud, Mikhail V. & Palatov, Dmitry M.', 1],
    ['Ge, Xinyu & Wang, Chengyan & Pei, Wenxuan & Tang, Yaning', 1],
    ['Ivkovic, Marija & Doric, Valentina & Baranov, Viktor', 1],
    ['Kobayashi, Tadashi', 1],
    ['Kong, Fanqing & A. Saether, Ole & Wang, Xinhua', 11],
    ['Kong, Fanqing & Saether, Ole A. & Wang, Xinhua', 7],
    ['Magoga, Giulia & Montagna, Matteo & Marziali, Laura', 15],
    ['Ole & Saether, A.', 3],
    ['Saether, Ole A.', 13],
    ['Tasdemir, Ayse & Akyildiz, Gurcay Kivanc', 13],
    ['Telfer, Angela C & Young, Monica R & Quinn, Jenna & Perez, Kate', 4],
    ['Other (1)', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=93)',
    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);