function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Azadbakhsh, Saeed & Nozari, Jamasb', 1],
    ['Barševskis, Arvīds & Janovska, Marina & Aksjuta, Kristīna', 2],
    ['Bousquet, Yves', 5],
    ['Chittaro, Yannick & Claude, François & Hoess, René', 1],
    ['Deuve, Thierry', 1],
    ['Frölich, Josef Aloys', 1],
    ['Hoess, René', 3],
    ['Hoess, René & Chittaro, Yannick & Walter, Thomas', 1],
    ['Hristovski, Slavčo & Guéorguiev, Borislav', 5],
    ['Kabak, Ilya', 1],
    ['Kesdek, Memiş', 2],
    ['Kostova, Rumyana & Gueorguiev, Borislav', 6],
    ['Mitter, Heinz & A, Upper', 1],
    ['Muilwijk, Jan & Seiedy, Marjan & Wrase, David W.', 1],
    ['Ortuño, Vicente M. & Arribas, Oscar & Muñoz-Santiago, José', 1],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=34)',
    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);