function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Khazali, Azhar Mohammed & Kachel, Hamid Saeid', 2],
    ['Barrientos, Jose A. & Prieto, Carlos E. & Pina, Silvia', 1],
    ['Brescovit, Antonio D. & Álvares, Éder S. S.', 4],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 2],
    ['Crespo, Luis C. & Silva, Isamberto & Enguidanos, Alba', 9],
    ['Dean, David Allen', 7],
    ['Isaia, Marco & Paschetta, Mauro & Chiarle, Alberto', 1],
    ['Lo, Ying-Yuan & Wei, Chi & Cheng, Ren-Chung', 2],
    ['Marjan Komnenov & Eva Pitta & Konstantina Zografou', 1],
    ['Marusik, Yuri M. & Nadolny, Anton A.', 1],
    ['Matsunaga, Janis N. & Howarth, Francis G.', 1],
    ['Pan, Fei & Zheng, Guo & Li, Shuqiang', 1],
    ['Paredes-Munguía, Williams & Brescovit, Antonio D.', 2],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 1],
    ['ZONSTEIN, SERGEI & MARUSIK, YURI M.', 1],
    ['Other (2)', 2]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=38)',
    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);