function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Al-Khazali, Azhar Mohammed & Kachel, Hamid Saeid', 3],
    ['Biswas, B. & Majumder, S. C.', 2],
    ['Bosmans & Van Keer', 2],
    ['Candek, Klemen & Gregoric, Matjaz & Kostanjsek, Rok', 6],
    ['Crespo, Luis C & Domenech, Marc & Enguidanos, Alba', 4],
    ['Dean, David Allen', 2],
    ['Deltshev, Christo & Komnenov, Marjan & Blagoev, Gergin', 6],
    ['Marusik, Yuri M. & Nadolny, Anton A.', 3],
    ['Omelko, M. M. & Marusik, Y. M.', 5],
    ['Paredes-Munguía, Williams & Brescovit, Antonio D.', 18],
    ['Paschetta, Mauro & Christille, Claretta & Marguerettaz, Fabio', 6],
    ['Ponomarev, A. V. & Bragina, T. M. & Shmatko, V. Yu.', 2],
    ['Sankaran, Pradeep M. & Caleb, John T. D.', 9],
    ['Wang, Lu-Yu & Marusik, Yuri M. & Zhang, Zhi-Sheng', 3],
    ['Wang, Luyu & Lu, Tian & Cai, Ducheng & Barrion, Alberto Tomas', 7],
    ['Other (13)', 15]
  ]);
  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);