function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Caleb, John T. D. & Mungkung, Soriephy & Mathai, Manu Thomas', 1],
    ['Haddad, Charles R. & WHVRáRZVND, Wdqgd', 2],
    ['Wesolowska, W. & van Harten, A.', 1],
    ['Wesołowska, Wanda & Haddad, Charles R.', 2],
    ['Wesołowska, Wanda & Russell-Smith, Anthony', 1],
    ['ZONSTEIN, SERGEI & MARUSIK, YURI M.', 1],
    ['Żabka, Marek & Patoleta, Barbara M.', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=10)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 7, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);