function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Dick, Matthew H. & Ngai, Nguyen Danh & Doan, Hung Dinh', 1],
    ['Gordon, Dennis P. & Taylor, Paul D.', 2],
    ['Grischenko, Andrei V. & Gordon, Dennis P.', 2],
    ['Hara, Urszula & Taylor, Paul D.', 4],
    ['Judith L Winston', 3],
    ['Liu, H. & Liu, X. & Zágoršek, K.', 1],
    ['Martha, Silviu O. & Taylor, Paul D. & Rader, William L.', 1],
    ['Moissette, Pierre & Antonarakou, Assimina & Kontakiotis, George', 2],
    ['O’Hara, James E. & Cerretti, Pierfilippo & Pape, Thomas', 1],
    ['Sforzi, Alessandra & Sommaggio, Daniele', 1],
    ['Taylor, Paul D. & Zatoń, Michał', 7],
    ['Zágoršek, Kamil & Gordon, Dennis P.', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=26)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 12, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);